Indian Institute of Technology Kanpur (IIT-K) 2006 JT - Question Paper

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(A) 360Ö3 (B)
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720 (C) 720 (D) 720Ö3
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Q.110 A certain sum of money is invested at an interest rate of 5% per annum and a 2nd sum, twice as
large as the first, is invested at 5.5% per annum. The total amount of interest earned from the two
investments together is Rs. 1000 per year and the interest is withdrawn every year. The 2nd sum
invested is
(A) Rs. 6250 (B) Rs. 10500 (C) Rs. 12500 (D) Rs. 15000
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ques. 111 and 112 are based on the following:
Two men are walking towards every other alongside a railway track. A freight train overtakes 1 of them in
20 seconds and exactly 10 minutes later meets the other man coming from the opposite direction. The train
passes this man in 18 seconds. presume the velocities are constant throughout.
Q.111 How long after the train has passed the 2nd man will the 2 men meet?
(A) 89.7 minutes (B) 90 minutes
(C) 90.3 minutes (D) cannot be determined from above
Q.112 The ratio of the velocities of the 1st man to the 2nd man is
(A) -10: nine (B) 9:10
(C) -9: 10 (D) undeterminable from above
Solution 111 & 112 ;
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Earning:   Approval pending.