What is the least number should be added to 1056, so the sum of the number is completely divisible by 26?
Options:
(A) 10
(B) 20
(C) 30
(D) 40
(E) 50
Answer and stream of consciousness: (A)
Stream of consciousness: (1056 / 26) gives remainder 16
10 + 16 = 26, So we need to add 10

If the average (arithmetic mean) of the four numbers K, 2K + 3, 3K 4 and 5K + 1 is 63, what is the value of K?
Options:
(A) 22 10/11
(B) 15 3/4
(C) 22
(D) 23
(E) 25 3/10
Answer and stream of consciousness: (A)
Stream of consciousness: K + 2K +3 + 3K - 4 + 5K +1 = 11K
(11K -1)/4 = 63
11K = 63 * 4 = 252
K = 252 / 11 = 22 10/11

(998-1)(998-2)(998-3)........(998-n)=....... when n>1000
Options:
(A) 4
(B) 3
(C) 2
(D) 1
(E) 0
Answer and stream of consciousness: (E)
Stream of consciousness: The term (998-998) makes the whole expression = 0.

A boy runs 200 metres in 24 seconds. What is his speed ?
Options:
(A) 20 km/hr
(B) 24 km/hr
(C) 28.5 km/hr
(D) 30 km/hr
(E) 35 km/hr
Answer and stream of consciousness:
(D)
Stream of consciousness: 200/24 * 18/5 = 30 km/hr