Q: The total number of students in Grades 1 and 2 is 30 more than the total number of students in grades 2 and 5. How much lesser is the number of students in Grade 5 as compared to Grade 1?
Options:
(A) 20
(B) 30
(C) 10
(D) 40
(E) 15
A: OK... Stream of consciousness: (Grade 1 + Grade 2) - (Grade 2 + Grade 5) = 30
Grade 1 - Grade 5 = 30
The answer is (B).

Q: A corporation triples its annual bonus to 50 of its employees. What percent W of the employees’ new bonus is the increase?
Options:
(A) 50%
(B) 662⁄3%
(C) 100%
(D) 200%
(E) 300%
A: OK... Stream of consciousness: W of the employees’ new bonus is the increase Hence
The answer is (B).

Q: Find the least number must be subtracted from 165826 so that remaining no.is divisible by 4?
Options:
(A) 1
(B) 2
(C) 3
(D) 4
(E) 5
A: OK... Stream of consciousness: On dividing 165826 by 4 we get the remainder 2, so 2 should be subtracted
The answer is (B).

Q: Ravi can do a piece of work in 25 days while Prakash can do it in 35 days. In how many days will they finish it together?
Options:
(A) 15 7/9 days
(B) 16 17/9 days
(C) 15 1/19 days
(D) 14 7/12 days
(E) 14 7/9 days
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... Stream of consciousness: 1/25 + 1/35 = 12/175
175/12 = 14 7/12 days
The answer is (D).