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?
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Step-by-step explanation:
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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