1.calculate the difference between the CI & the SI on ₹10,000 in two years & at 5% per year.(₹25)
2.calculate the CI on ₹15000 in 3 years; if the rates of interest for successive years be 6%,7% & 10% respectively.(₹3,889.20).
3.A person invests ₹ 5,000 for two years at a certain rate of interest compounded annually.At the end of one year,this sum amounts to ₹5,600.calculate
a) the rate of interest per year.
b)the amount at the end of the second year.(12%, 6272)
4.The SI on a sum of money is 1/9 of the principal, and the number of years is equal to the rate percent, per anuum.Find the rate of interest.(10/3)
5.If a man pays ₹2000 as the annual instalment,to discharge a loan of ₹8480 due in 4 years, find the rate of interest.(4%)
6.Two equal sums were lent out at 6% & 9% SI respectively
.The interest earned on the two loans in 4 years adds up to ₹11280,find the total sum lent out.(₹37600)
7.Divide ₹23790 into three parts so that their amounts after 2,3 & 4 years respectively may be equal,the rate of interest being 5% per annum.(8280,7920 & 7590)
8.A man lends ₹ 10,000 to two persons. To one he lends at a SI rate of 10%p.a. for 4 years, and to other at 12% p.a. for 2 years and 6 months.If the SI paid by the first man is twice that paid by the other,find the sum of money lent to each person separately.(6000,4000)
9.A man buys a black and white Tv priced at ₹2000.He pays ₹800 at once and the rest after 15 months on which he is charged a simple interest at the rate of 7.5% per year.Find the total amount he pays for the TV.(2112.50)
10.x,y,z are three sums of money such that y is the simple interest on x, and z is the simple interest on y for the same time and rate.Show that y×y=z×x.
2.calculate the CI on ₹15000 in 3 years; if the rates of interest for successive years be 6%,7% & 10% respectively.(₹3,889.20).
3.A person invests ₹ 5,000 for two years at a certain rate of interest compounded annually.At the end of one year,this sum amounts to ₹5,600.calculate
a) the rate of interest per year.
b)the amount at the end of the second year.(12%, 6272)
4.The SI on a sum of money is 1/9 of the principal, and the number of years is equal to the rate percent, per anuum.Find the rate of interest.(10/3)
5.If a man pays ₹2000 as the annual instalment,to discharge a loan of ₹8480 due in 4 years, find the rate of interest.(4%)
6.Two equal sums were lent out at 6% & 9% SI respectively
.The interest earned on the two loans in 4 years adds up to ₹11280,find the total sum lent out.(₹37600)
7.Divide ₹23790 into three parts so that their amounts after 2,3 & 4 years respectively may be equal,the rate of interest being 5% per annum.(8280,7920 & 7590)
8.A man lends ₹ 10,000 to two persons. To one he lends at a SI rate of 10%p.a. for 4 years, and to other at 12% p.a. for 2 years and 6 months.If the SI paid by the first man is twice that paid by the other,find the sum of money lent to each person separately.(6000,4000)
9.A man buys a black and white Tv priced at ₹2000.He pays ₹800 at once and the rest after 15 months on which he is charged a simple interest at the rate of 7.5% per year.Find the total amount he pays for the TV.(2112.50)
10.x,y,z are three sums of money such that y is the simple interest on x, and z is the simple interest on y for the same time and rate.Show that y×y=z×x.
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