{Female = (+); Male = (-)}

Here, it is clear from the above diagram that ‘T’ is the father-in-low of ‘J’

Hence, option A is the correct answer.

● Majuli is the world's biggest inhabited riverine island located on the Brahmaputra river, Assam, India. In 2016, it became the first island to be made a district in India.

● The island is inhabited by Mising, Deori, and Sonowal Kachri tribes. It covers an area of around 352 sq km.

• The Widal test is one method that may be used to help make a presumptive diagnosis of enteric fever, also known as typhoid fever.

• The Widal test detects agglutinating antibodies against the O and H antigens of S. Typhi.

• The Widal test was developed over a century ago and remains one of the world's most widely used diagnostic tests.

The ratio of the number of males and females in a group is 6 : 7

Let number of males = 6x

Number of females = 7x

Now, fifteen females leave the group and as a result, this ratio becomes 12 : 11

⇒

⇒

⇒

⇒

Hence, Number of males =

Number of females =

if 6 males join the group , then

Number of males =

Number of females =

Ratio of the number of males and females in the group = 66:55 = 6:5

Loss % after selling an article = 12%

Let CP of article be Rs x

Then SP = x – =

When the selling Price is increased by 162 then

New SP =

Gain% = 24%

⇒ 24 =

⇒

⇒ x =

Hence CP = x = Rs 450

Now SP = Rs. 360

Then loss% =

Loss% =

The sentence is grammatically incorrect, and the error lies in option D. The error is related to Determiner.

• “Most” as a determiner is used when highest degree of something is mentioned i.e. in superlative sense.

For example:

Who ate the most?

• Here in the given sentence, Mr. Bansal’s quality of being “methodical person” is related with the other people in the staff. Thus, “most” should be used after “the” to show this highest degree.

• Hence, in the given sentence, “the most” is correct.

Thus, the correct sentence becomes:

Mr. Bansal is the most methodical person in our office staff.

The given sentence is of active voice and it is an interrogative sentence. The tense of given sentence is simple past.

The structures for active/passive voices for modal verbs are :-

Active Voice :- Did + subject + verb (Ist form) + object.

Passive Voice :- Was/Were + object + verb (IIIrd form) + by + subject.

So, with the help of the above structures, we can convert the given sentence into the active voice: Was my letter received by you?

Hence, option D is the correct answer.

The meaning of the above given words are-

Honorary-a post for which no salary is paid.

Volunteer-to help with some task without demanding a pay for it and without being formally connected to the concerned organization.

Samaritan-a person who offers help to someone in despair.

Highbrow-being highly cultured or intellectual.

So, the appropriate word to replace the question sentence is ‘honorary’. Hence the correct option is A.