Quantitative Aptitude

General Questions

31.  A sum of ₹ 1550 was lent partly at 5% and partly at 8% p.a. simple interest. The total interest received after 3 years was ₹ 300. The ratio of money lent at 5% to that lent at 8% is :
A. 5 : 8
B. 8 : 5
C. 16 : 15
D. 31 : 6
32.  A person borrowed ₹ 500 @ 3% per annum S.I. and ₹ 600 @ 4% per annum on the agreement that the whole sum will be returned only when the total interest becomes ₹ 126. The number of years, after which the borrowed sum is to be returned, is :
A. 2
B. 3
C. 4
D. 5
33.  The rate of interest for the first 2 years is 5% for the next 3 years is 8% and beyond this. It is 10% per annum. If the simple interest for 8 years is ₹ 1280. What is the principal ?
A. ₹ 2500
B. ₹ 2000
C. ₹ 3200
D. ₹ 2440
34. 

Consider the following statements :

If a sum of money is lent at simple interest, then the

1. money gets doubled in 5 years if the rate of interest is 16%.

2. money gets doubled in 5 years if the rate of interest is 20%.

3. money becomes four times in 10 years if it gets doubled in 5 years.

Of these statements,
A. 1 and 3 are correct
B. 2 alone is correct
C. 3 alone is correct
D. 2 and 3 are correct
35.  A certain sum of money at simple interest amounts to ₹ 1012 in 2 years and to ₹ 1067.20 in 4 years. The rate of interest per annum is:
A. 2.5%
B. 3%
C. 4%
D. 5%

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Exercise