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Start learning 50% faster. Sign in nowFirst month = Rs 200 Second month = Rs 180 Third month =Rs 160 Sum = n/2 {2a + ( n – 1 )d] a = 200 d = - 20 = (11/2) [2 x 200 + ( 11 – 1 ) (-20)] = (11/2) [400 – 20] = (11/2) x 200 = 1100 P = (200 x 11)/2 = 1,100 (P x R x T)/100 = S.I (1100 x R x 1)/(100 x 12) = 20 R = (12 x 20)/11 = 21(9/11) %
A sum on simple interest becomes 9/4 times of itself in five years, find the rate of interest.
A man invests ₹50,000 in two schemes A and B for 1 year. Scheme A offers 12% simple interest and Scheme B offers 10% compound interest, compounded ann...
A man invested certain sum at simple interest of r% p.a. such that it amounts to 150% of itself in 5 years. Find the interest earned when Rs. 2200 is in...
Rs. 8000 is invested in scheme ‘A’ for 3 years and Rs. 4000 is invested in scheme ‘B’ for 2 years. Scheme ‘A’ offers simple interest of 6% p...
Find the total amount returned by Manish to the bank at the end of three years, when Rs.24000 is borrowed at the rate of (25/2)% compounded annually?(ca...
Suresh deposited Rs. ‘Q’ in a bank offering compound interest of 7% p.a. compounded annually. After 5 years, he invested the amount received from th...
A certain amount earns simple interest of Rs. 1480 after 3 years. Had the interest been 5% more, how much more interest would it have earned?
A certain sum of money becomes 4000 in 6 years and Rs. 5000 in 10 years at any certain rate of simple interest. Find the principal amount.
The difference between compound interest and simple interest at rate of 10% per annum for 2 years is Rs. 120. Find the simple interest obtained on same ...
