Question

In how many years will a sum of $1200 becomes $1392 at 8% p.a. rate of simple interest?​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

P=Rs.1200,A=Rs.1632,t=4

A=P+

100

P×r×t

⟹1632=1200

100

1200×r×4

⟹r=9%

Now if rate is increased by 1% then r=(9+1)%=10%then amount will be,

A=P+

100

P×r×t

⟹A=1200

100

1200×10×4

⟹A=Rs.1680