q: 3 candidates in an election and received 1136, 7636 and 11628 votes respectively. What % of the total votes did the winningcandidate got in that election?
Options:
(A) 45%
(B) 56%
(C) 57%
(D) 70%
(E) 72%
a: OK... Total number of votes polled = (1136 + 7636 + 11628) = 20400
So, Required percentage = 11628/20400 * 100 = 57%
The answer is (C).

q: A train 320 m in length crosses a telegraph post in 16 seconds. The speed of the train is?
Options:
(A) 22 kmph
(B) 77 kmph
(C) 54 kmph
(D) 72 kmph
(E) 88 kmph
a: OK... S = 320/16 * 18/5 = 72 kmph
The answer is (D).

q: The edge of a cube is 4a cm. Find its surface?
Options:
(A) 104a2 cm2
(B) 64a2 cm2
(C) 96a2 cm2
(D) 84a2 cm2
(E) 56a2 cm2
a:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
OK... 6a2 = 6 * 4a * 4a = 96a2
The answer is (C).