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What is the theme of World Wetlands Day 2024?
The Correct Answer is Wetlands and human wellbeing.
In News
Key Points
A closed cylindrical tank with a height of 1 m and a base diameter of 140 cm must be constructed from a metal sheet. For the same, how many m2 of the sheet are required? [Use π = 22/7]
Given:
Height of the cylinder = 1 m
Diameter = 140 cm = 1.4 m, so radius = 1.4/2 = 0.7 m
Concept used:
Total surface area of the cylinder = 2πrh + 2πr2
Calculation:
Total sheet required = 2πrh + 2πr2 = 2πr(h + r)
⇒ 2 × 22/7 × 0.7 × (1 + 0.7)
⇒ 4.4 × 1.7
⇒ 7.48 m2
∴ The correct answer is 7.48 m2.
In this question the relation between different elements has been given in the statement. Two conclusions related to the statement have been given.
Statement: C < L > I = E ≥ N > T
Conclusion:
i) I > T
ii) T < C
Select the appropriate of the following options.
A. The only conclusion i is logical is
B. only the conclusions ii is logical
C. Either the conclusions i or ii is rational
D. Neither conclusion ii nor rational is
E. i and ii both conclusions are rational.
The given statement is: C < L > I = E ≥ N > T
Conclusion i) I > T
From the statement, we can see that I = E, and E ≥ N > T. Therefore, I > T is logically correct. Hence, conclusion i) is logical.
Conclusion ii) T < C
From the statement, we can see that C < L > I. However, there is no direct relation between C and T. Therefore, we cannot conclude that T < C. Hence, conclusion ii) is not logical.
Therefore, the only conclusion that is logical is i),
Hence, the correct answer is option A.
Which of the following Harappan sites shows evidence of the presence of 'dockyard'?
The correct answer is Lothal.
Lothal:
Additional Information
Three different positions of the same dice are shown. Select the symbol that will be on the face opposite to the one having '€'.
For find the opposite surface of '€', we need to compare the common surface in the given dices,
Now, symbol '€' is given in Dice 1 and Dice 2,
So, From Dice 1 and Dice 2,
→ € is the common surface and ¥, @, ©, % is the adjacent surface.
So, the remaining '$' will be the opposite face of '€'.
Hence, the correct answer is "Option 4".
Which of the following publicises the data on poverty collected by NSO?
The correct answer is NITI Aayog.
Which component of cell helps in cell division and controls the activity & hereditary characters of the cell?
The correct answer is Nucleus.
The respective ratio of milk and water in the mixture is 4 ∶ 3. If 6 litres of water is added to this mixture, the respective ratio of milk and water becomes 8 ∶ 7.
What is the quantity of milk in the original mixture?
Ratio of milk and water in the mixture is 4 ∶ 3
After adding 6 liter water ratio become 8 : 7
Let the actual quantity of milk and water in a mixture be 4x and 3x
According to the question
4x/(3x + 6) = 8/7
⇒ 4x × 7 = 8 (3x + 6)
⇒ 28x = 24x + 48
⇒ 28x – 24x = 48
⇒ 4x = 48
⇒ x = 48/4
⇒ x = 12
So, quantity of milk in the original mixture = 4 × 12 = 48
∴ The quantity of milk in the original mixture is 48 litres.
How many such pairs of letters are there in the word 'CLUSTERS' (in both the forward and backward directions) which have as many letters between them in the word as there are in the English alphabetical order?
The alphabets are positioned as in the following order:
Given word → CLUSTERS
The given word can be represented as follows,
So, In the forward direction → "ST" and "RS".
In the backward direction → "RT".
∴ Here, three pairs are there in word 'CLUSTERS', each of which has many letters between them in the word (both forward and backward direction) as they have between them in the English Alphabet.
Hence, the correct answer is "3".
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