q: John makes $60 a week from his job. He earns a raise andnow makes $75 a week. What is the % increase?
Options:
(A) 16.12%
(B) 25%
(C) 16.56%
(D) 17.66%
(E) 18.1%
a: Increase = (15/60)*100 = (1/4)*100 = 25%. The answer is (B).
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q: A person spends 1/3rd of the money with him on clothes, 1/5th of the remaining on food and 1/4th of the remaining on travel. Now, he is left with Rs 300. How much did he have with him in the beginning?
Options:
(A) s 200
(B) s 750
(C) s 300
(D) s 450
(E) s 550
a: Suppose the amount in the beginning was Rs 'x'
Money spent on clothes = Rs 1x/3 Balance = Rs 2x/3
Money spent on food = 1/5 of 2x/3 = Rs 2x/15
Balance = 2x/3 - 2x/15 = Rs 8x/15
Money spent on travel = 1/4 of 8x/15 = Rs 2x/15 = 8x/15 - 2x/15 = 6x/15 = Rs2x/5
Therefore 2x/5 = 300 = 750 The answer is (B).
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q: If a train, travelling at a speed of 90 kmph, crosses a pole in 5 sec, then the length of train is?
Options:
(A) 288
(B) 125
(C) 88
(D) 76
(E) 232
a: D = 90 * 5/18 * 5 = 125 m The answer is (B).
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q: How much is 80% of 40 is greater than 4/5 of 30?
Options:
(A) 12
(B) 27
(C) 8
(D) 12
(E) 81
a:
(80/100) * 40 (4/5) * 30
32 - 24 = 8 The answer is (C).
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