Question

+
At a certain rate of interest, the interest
after 4 years on 5000 rupees principal
is 1200 rupees. What would be the
interest on 15000 rupees at the same
rate of interest for the same period?
If Pankaj deposits 1,50,000 rupees in
a bank at 10 p.c.p.a. for two years.
what is the total amount he will get
from the bank?
5
ime, rate and amount are given, to find
and solve​

Answer 1

Answer:

Interest on 5000 after 4 years =100(5000)(4)r=200r

where r= rate of interest

Given 200r=1200

⇒r=6

∴ Rate of interest =6%

Interest on 15000 rupees =100pnr

=10015000×4×6

Interest on 15,000 =600×6=Rs3600.

Pankaj Invested amount P=1,50,000

Interest =10%=r

No. of years =n=2

Total amount he gets after 2 years =P+100Pnr

=P[1+1002×10]

=P(56)=150000×56

=1,80,000

∴ Pankaj gets Rs. 1,80,000 after 2 years

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