type 6 si with ratios Section-Wise Topic Notes With Detailed Explanation And Example Questions

Question : 1

Rs.12,000 is divided into two parts so that the simple interest on the first part for 3 years at 12% per annum may be equal to the simple interest on the second part for 4$1/2$ years at 16% per annum. The ratio of the first part to the second part is

a) 1 : 2

b) 2 : 1

c) 3 : 2

d) 2 : 3

Question : 2

A sum of Rs.1550 was lent partly at 5% and partly at 8% simple interest. The total interest received after 3 years is Rs.300. The ratio of money lent at 5% to that at 8% is :

a) 8 : 5

b) 5 : 8

c) 16 : 15

d) 31 : 6

Question : 3

Ratio of the principal and the amount after 1 year is 10:12. Then the rate of interest per annum is :

a) 16%

b) 12%

c) 20%

d) 18%

Question : 4

A sum of Rs. 4000 is lent out in two parts, one at 8% simple interest and the other at 10% simple interest. If the annual interest is Rs. 352, the sum lent at 8% is

a) Rs.2200

b) Rs.2900

c) Rs.3100

d) Rs.2400

Question : 5

A person lent Rs.5,000 partly at the rate of 4 per cent and partly at the rate of 5 per cent per annum simple interest. The total interest after 2 years is Rs.440. To find the sum of money lent at each of the above rates, Rs.5,000 is to be divided in the ratio :

a) 3 : 2

b) 4 : 5

c) 2 : 3

d) 5 : 4

Question : 6

In a certain time, the ratio of a certain principal and the simple interest obtained from it are in the ratio 10 : 3 at 10% interest per annum. The number of years the money was invested is

a) 3 years

b) 1 year

c) 7 years

d) 5 years