Friday, 8 November 2019

Assignment on simple interest ,class 7

1.Jhony invests Rs1960 & Rs 1850 at the same rate of interest and receives Rs 11 more as interest in one case than in the other every year.What is the rate?
2.If a sum of money amounts to Rs 2200 in 5 years and the interest is 3/8 of the principal.,find the rate of interest and the principal.
3.A sum of money amounts to Rs. 849 after 1 year and tio Rs 882 after 2 years. Find the rate at which  the interest is paid.
4.A sum of money becomes double in 10 years.In what time will the same sum become three times it's value?
5.In what time will the interest on a sum of money equal half the money at the rate of 8%?
6.In 8 years a sum of money becomes Rs 1260 at the rate of 5% per annum . After how many years will it becomes Rs 2700.?
7.The interest on Rs 700 amounts to Rs 112 in 2 years at a certain rate of interest .In what time will Rs 2000 amount to Rs 4200 at the same rate of interest?
8.Rs 457.50 was paid as interest on Rs 3050.If the rate was 6% per annum and the amount was borrowed on January 12, 2001.What was the date on which  the loan was recovered?
9.Find the principal on which the interest will amount to Rs 101 from June 16 to November 9 of the same year at the rate of 5% per annum.
10.Find the simple interest on Rs 72,400 from April 15,2005 to June 27,2005 at 4.5 % per annum.

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