Reasoning: A = 7500(26/25)2 = 8112
Ans: (D)
Question: If Rs.7500 are borrowed at C.I at the rate of 4% per annum, then after 2 years the amount to be paid is?
Options:
(A) 2287
(B) 2689
(C) 1667
(D) 8112
(E) 1691
Rationale: (y + 1)! = (y + 1) * x!
(y + 1)!/y! = y + 1
The answer: (D)
Question: Which of the following is equal to (y+1)!/y!?
Options:
(A) y-1
(B) 1+(1/y)
(C) 1
(D) y+1
(E) y
Reasoning: 1/18 + 1/30 = 8/90 = 4/45
45/4 = 11 1/4 *2 = 22 1/2 days
Ans: (B)
Question: A can do a job in 18 days and B can do it in 30 days. A and B working together will finish twice the amount of work in days?
Options:
(A) 22 1/6
(B) 22 1/2
(C) 22 1/0
(D) 22 1/9
(E) 22 1/1
Rationale: 125% of 120% of A = 237
125/100 * 120/100 * A = 237
A = 237 * 2/3 = 158.
The answer: (C)
Question: A sells a Cricket Bat to B at a profit of 20%. B sells it to C at a profit of 25%. If C pays $237 for it, the cost price of the Cricket Bat for A is:
Options:
(A) 150
(B) 120
(C) 158
(D) 160
(E) 210
Reasoning: Speed = 63 * 5/18 = 35/2 m/sec
Time taken = 280 * 2/35 = 16 sec
Ans: (B)
Question: A train 280 m long, running with a speed of 63 km/hr will pass a tree in?
Options:
(A) 65 sec
(B) 16 sec
(C) 87 sec
(D) 99 sec
(E) 96 sec
Reasoning: (60/100) * 50 (40/100) * 30
30 - 12 = 18ch 60% of 50 is greater than 40% of 30?
Ans: (A)
Question: How much 60% of 50 is greater than 40% of 30?
Options:
(A) 18
(B) 99
(C) 77
(D) 66
(E) 12