Verbal Reasoning - Mental Ability Questions

Tadpole is the larval stage in all the amphibians whereas larva in all the insects.

x – y = 5

4x – 6y = 6

x = 12 y = 7

Between the two I prefer tea is the correct sentence with suitable preposition.

The given sequence is a combination of two series:
i.)Y,T, O and ii.)B, G, ?
i. consists of 2nd, 7th, 12th letters from end of English alphabet,while
ii. consists of 2nd, 7th, 12th letters from beginning of English alphabet
So, the missing letter in ii.) is the 12th letter from the beginning of English alphabet,which is L.

As Microphone makes sound louder similarly Microscope makes the object magnified.

Hence, Microphone : Loud :: Microscope : Magnify.

Letters in the word 

C K E

Letters in the alphabet

C D E

The 4th day is tuesday, then 11, 18, 25th also tuesdays

Then 3 days after 24th is 27th, which is thursday

My mother's only daughter means the woman itself. Woman's daughter is the mother of man in question.Therefore, the woman (speaker) is the grand mother of man. Thus, man is the grandson of the woman.