Mamta has cumulative time deposit in a bank. She deposits rupees 800 per month and gets rupees 15198 as maturity value. If the rate of interested be 7% per annum find the total time for which the account was held.
Please give the answer at the earliest.
Answers
Answered by
0
Answer:
4
Step-by-step explanation:
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Answered by
2
Answer:
4 years
Step-by-step explanation:
P = ₹800
R% = 7%
M.V. = ₹15198
M.V. = P*n + P* n(n+1)/2*12 * r/100
15198 = 800n + 800 * n²+n/24 * 7/100
15198 = 800n + n²+n/3 * 7
15198 * 3 = 800n + n² + 7n
45594 = n² + 807n
n² + 807n - 45594 = 0
after solving this you will get the answer
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