question:a contract was signed to complete a job in 30 days. after how many days can 5 men leave then so that the job can be completed in 35 days
Options:
(A) 30 days.
(B) 35 days.
(C) 45 days.
(D) 55 days.
(E) 65 days.
answer:(B)
Stream of consciousness:If no of men used initially is x, then after (35-x) days 5 men can leave so that the job can be completed in 35 days.

question:There are 5person among whom 2are brother. The total no.of ways in which these persons can be seated around a round table so that exactly 1person sit between the brothers, is equal to?
Options:
(A) 4!*2!
(B) 2!*2!
(C) 6!*1!
(D) 2!*1!
(E) 5!*1!
answer:(B)
Stream of consciousness:Total number of ways = 2!*2!.

question:A no.when divided by 221 gives a remainder 43, what remainder will beobtained by dividing the same number19?
Options:
(A) 3
(B) 6
(C) 9
(D) 11
(E) 15
answer:
(C)
Stream of consciousness:221 + 43 = 264/17 = 9 (Remainder)