Question

Samita has a RD account in a bank of Rs. 2000 per month at the rate of 10% pa . if she gets Rs. 83100 at the time of maturity , find the total time for which the account was held ???
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Answer 1

Step-by-step explanation:

MATHS

Samita has a recurring deposit account in a bank of Rs2000 per month at the rate of 10% p.a.If she gets Rs83100 at the time of maturity, find the total time for which the account was held.

December 26, 2019Simeen Kundaliya

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ANSWER

P=Rs.2000

R=10%

M.V=Rs.83100

I=P×2×12n(n+1)×100R

∴I=25×24n(n+1)×10010

=325(n2+n)

MV=P×n+I

⇒83100=(2000×n)+325n2+325n

⇒83100=36000n+25n2+25n

⇒83100×3=6000n+25n2+25n

⇒25n2+6025n−249300=