Please wait...

RRB JE 2024 Mix Test - 4
Result
RRB JE 2024 Mix Test - 4
  • /

    Score
  • -

    Rank
Time Taken: -
  • Question 1/10
    1 / -0

    A has 20% more money than B, and C has 20% less money than B. What percent more money does A have than C ?

    Solutions

    Given:

    Money of 'A' = 20% more than Money of B and,

    Money of 'C' = 20% less than Money of B.

    Concept Used:

    Percentage: A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the per cent sign, '%'.

    If P is x per cent more than Q, then

    P = Q{1 + (x/100)}

    If P is x per cent less than Q, then

    P = Q{1 - (x/100)}

    Percentage of P more than Q

    = {(P - Q)/Q} × 100%

    Calculation:

    Let, B have x money, then according to the question,

    Money of 'A' = 20% more than Money of B

    A = B{1 + (20/100)}

    ⇒ A = (6/5) × B      ----(1)

    Money of 'C' = 20% less than Money of B, i.e

    C = B{1 - (20/100)}

    ⇒ C = (4/5) × B   ......(2)

    So, the amount of money of A, more than C will be

    A - C = (6/5 - 4/5) × B

    ⇒ A - C = (2/5) × B

    Percentage of money, A has more than C

    {(A - C)/C} × 100%

    ⇒ {(2/5) × B}/{(4/5) × B} × 100%

    = (1/2) × 100%

    ⇒ 50%

    ∴ A has 50% more money than C.

    Alternate Method

    Let, B has 100 rupees

    Then, according to the question, 

    Money of A = 120 rupees, and

    Money of C = 80 rupees

    Therefore, the difference in money between A and C

    = 40 rupees

    Percentage of money, A have more than C = {(A - C)/C} × 100%

    ⇒ (40/80) × 100%

    ⇒ (1/2) × 100%

    ⇒ 50%

    ∴ A has 50% more money than C.

  • Question 2/10
    1 / -0

    Schedule tribes with a significant population, are found in which state according to census 2011?

    Solutions

    The correct answer is Madhya Pradesh.

    Key Points

    • As of the 2011 Census, Scheduled Tribes are found in almost all states and union territories of India.
    • However, the proportion of the population that belongs to a Scheduled Tribe varies considerably by state.
    • Here are some states with significant Scheduled Tribe populations:
      • Madhya Pradesh: This central Indian state has the largest population of Scheduled Tribes in terms of raw numbers.
      • Maharashtra: This state in western India also has a significant Scheduled Tribe population.
      • Odisha: In this eastern state, more than 22% of the population belongs to a Scheduled Tribe.
      • Rajasthan: This northern state also has a sizable Scheduled Tribe population.
      • Gujarat: In this western state, about 14.75% of the population are members of a Scheduled Tribe.
      • Jharkhand: This eastern state has a significant Scheduled Tribe population, accounting for more than 26% of the total population.
      • Chhattisgarh: About 30.62% of the total population of this central state belongs to a Scheduled Tribe.
      • The Seven Sister States (Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, Nagaland, and Tripura) in Northeast India: These states have a significant proportion of Scheduled Tribes, with some like Mizoram and Nagaland having majority of the population belonging to Scheduled Tribes.
      • The Andaman and Nicobar Islands and the Lakshadweep Islands also have majority Scheduled Tribe population.
  • Question 3/10
    1 / -0

    Which of the following planets is called the twin sisters of the earth?

    Solutions

    The correct answer is Venus.

    Key Points

    • Venus and Earth are commonly referred to as Earth's twins since they are nearly identical in size, mass, and composition (they are composed primarily of the same material).
    • Venus is the second planet from the Sun and is identical in size and structure to Earth.
    • It's known as the morning or evening "star" because of its bright visibility from Earth at dawn or dusk.
    • It has a very dense atmosphere, primarily composed of carbon dioxide with clouds of sulfuric acid, which creates a strong greenhouse effect, trapping heat and making it the hottest planet in our solar system.
    • Venus rotates on its axis very slowly and in the opposite direction of most other planets.
    • Venus does not have any moons.

    Additional Information

    •  Mercury
      • Mercury is the smallest planet in the solar system and the closest to the Sun.
      • A year on Mercury, or one full orbit around the Sun, takes 88 Earth days.
      • The surface of Mercury is heavily cratered and similar in appearance to Earth's moon.
      • There is no substantial atmosphere on Mercury, leading to extreme temperature variations between its day side and night side.
      • Mercury also has no moons.
    • Saturn
      • Saturn is the second-largest planet in our solar system after Jupiter.
      • It's most famous for its prominent ring system, which is composed mainly of ice particles with a smaller amount of rocky debris and dust.
      • Saturn is a gas giant, made up mostly of hydrogen and helium.
      • Saturn, as acknowledged by the International Astronomical Union, boasts a total of 145 moons. Notably, the moon count experienced a significant surge in May 2023 when a team led by Edward Ashton, a postdoctoral fellow at the Academia Sinica Institute of Astronomy and Astrophysics, identified 62 new moons.
      • The famous hexagonal storm around Saturn's north pole was observed by the Voyager and Cassini spacecraft.
    • Jupiter
      • Jupiter is the largest planet in the solar system.
      • It's a gas giant, primarily composed of hydrogen with a quarter of its mass being helium.
      • Jupiter has a strong magnetic field and a large number of moons, the largest four being Io, Europa, Ganymede, and Callisto, known as the Galilean moons.
      • The Great Red Spot, a storm that has been raging on Jupiter for at least 300 years, is one of the planet's most defining features.
      • The Juno spacecraft, launched by NASA in 2011, is actively studying Jupiter, focusing on its composition, gravity field, magnetic field, and polar magnetosphere.
  • Question 4/10
    1 / -0

    Four words have been given, out of which three are alike in some manner and one is different. Select the word that is different.

    Solutions

    The logic follow here is:

    All the words except prowl are sounds.

    By checking options:

    (1) Yowl → make a loud wailing cry.

    (2) Prowl → an act of (of a person or animal) moving about restlessly and stealthily, especially in search of prey.

    (3) Growl → (of a thing) make a low or harsh rumbling sound.

    (4) Howl → weep and cry out loudly.

    Hence, prowl is the odd one out.

  • Question 5/10
    1 / -0

    The curved surface area of a hemisphere is 2772 cm2. Find the volume of the hemisphere.

    Solutions

    Given:

    The curved surface area of the hemisphere = 2772 cm2

    Formula Used:

    The curved surface area of the hemisphere = 2πr2 

    The volume of the hemisphere = (2/3) × πr3

    Where,

    r = radius

    Calculation:

    According to the question, we have

    2πr2 = 2772

    ⇒ 2 × (22/7) × r2 = 2772

    ⇒ r2 = 441

    ⇒ r = 21

    Now,

    The volume of the hemisphere = (2/3) × (22/7) × (21)3

    ⇒ 44 × 21 × 21

    ⇒ 19404 cm3 

    ∴ The volume of the hemisphere is  19404 cm3.

  • Question 6/10
    1 / -0

    In a linear race of 1000 m, A beats B by 50 m or 5 seconds. What is the difference between the speeds (in m/s) of A and B?

    Solutions

    Given:

    In a linear race of 1000 m, A beats B by 50 m or 5 seconds.

    Concept used:

    Speed = Distance/Time

    Calculation:

    According to the question,

    When A covers 1000 m B covers 950 m

    Also, B covers 50 m in 5 sec

    So, the speed of B = 10 m/sec

    So, to cover 950 m B will take 950/10

    ⇒ 95 sec

    Again,

    Speed of A = 1000/95     [As the time of covering 1000 m by A is the same as covering 950 m by B]

    ⇒ 200/19 m/sec

    ∴ The difference between the speeds (in m/s) of A and B is 10/19.

  • Question 7/10
    1 / -0

    A piece of paper is folded and punched as shown below in the question figures. From the given answer figures, indicate how it will appear when opened?

    Solutions

    Important Note:

    1. This question is from the previous year's paper and the given answer is as per the official answer key.
    2. All options have different images (shapes) in the middle.
    3. Options are not the same check the Direction of the Middle pentagons.

    The paper when unfolded will appear as shown below:

    Hence, the correct answer is "option 2".

  • Question 8/10
    1 / -0

    If a sum of money becomes 4000 in 2 yrs and 5500 in 4 yrs 6 months at the same rate of simple interest per annum. Then the rate of simple interest is

    Solutions

    A sum of money becomes 4000 in 2 years and 5500 in 4 years 6 months.

    SI for 2 years 6 month (5/2 years) = 5500 - 4000 = 1500

    SI for 1 year = 1500 × 2/5 = 600

    SI for 2 years = 2 × 600 = 1200

    Principal = 4000 - 1200 = 2800

    As we know,

    SI = Prt/100

    ⇒ 1200 = (2800 × r × 2)/100

    ⇒ r = 1200/56

  • Question 9/10
    1 / -0

    In a certain code language, ‘FRUIT’ is written as SGRPE. How will ‘THINK’ be written in the same code language?

    Solutions

    The positions of the letters according to the English alphabet series:

    FRUIT’ is written as SGRPE.

    Hence, the correct answer is JLFFS.

  • Question 10/10
    1 / -0

    Which disease refers to the spectrum of ocular disease caused by severe Vitamin A deficiency (VAD)?

    Solutions

    The correct answer is Xerophthalmia.

    Key Points

    • Xerophthalmia is caused due to a deficiency of vitamin A.
    • Xerophthalmia is a condition of early vitamin A deficiency in which the cornea keratinizes, becomes opaque, and forms dry, scaly layers of cells.
    • The affected cornea is susceptible to infection.
    • Xerophthalmia can progress to irreversible blindness if left untreated.
    • Even today, Xerophthalmia is a major problem in developing countries and is a leading cause of preventable blindness.
    • In the eye, vitamin A is metabolized to form rhodopsin (retinal visual pigment).

    Additional Information

    Diabetic retinopathy

    • When a patient with diabetic retinopathy experiences sudden vision changes, the priority is to minimize further damage.
    • Resting in a darkened room can reduce strain on the eyes and prevent exacerbation of the condition.
    • Other interventions may be necessary, but immediate comfort and protection of the patient's vision are paramount.
    • Diabetic retinopathy is a condition that can lead to severe and irreversible vision loss if not promptly managed.

    Glaucoma

    • Glaucoma is not a single ailment/disease it is a group of eye conditions that causes blindness.
    • There are two types of glaucoma
      • Open-angle glaucoma
      • Closed-angle glaucoma

    Cataract

    • It represents a condition or state of cloudiness in the lens of the eye which results in a blurred, distorted or incomplete vision due to the blockage of light necessary for having a clear vision.
    • In this condition, the lens tissue changes and becomes thicker.
    • Symptoms can include blurred colors, distorted or double vision, luminous halos, and issues related to night vision.
    • Congenital cataract is a cataract that is present at birth. It occurs when a mother contacts German measles in the first three months of pregnancy.
User Profile
-

Correct (-)

Wrong (-)

Skipped (-)


  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Click on Allow to receive notifications
×
Open Now