The speed of a boat in still water is 80kmph and the speed of the current is 20kmph. Find the speed downstream and upstream?
Options:
(A) kmph
(B) kmph
(C) kmph
(D) kmph
(E) kmph

Speed downstream = 80 + 20 = 100 kmph
Speed upstream = 80 - 20 = 60 kmph So the answer is: (D).

A can do a piece of work in 12 days. When he had worked for 2 days B joins him. If the complete work was finished in 8 days. In how many days B alone can finish the work?
Options:
(A) 18
(B) 99
(C) 77
(D) 62
(E) 12

8/12 + 6/x = 1
X = 18 days So the answer is: (A).

A no. when divided by the sum of 555 and 445 gives 2times their difference as quotient & 20 as remainder. Find the no. is?
Options:
(A) 122456
(B) 220020
(C) 220022
(D) 235467
(E) 220026

(555 + 445) * 2 * 110 + 20 = 220000 + 20 = 220020 So the answer is: (B).

Which of the following numbers is divisible by 8?
Options:
(A) 10021
(B) 17511
(C) 26778
(D) 18520
(E) 26711
18520. This is the only option with last two digits divisible by 8 So the answer is: (D).