Question

A certain sum of amounts to Rs 4800 in 4 years and Rs 5200 in 6 years find the sum and the rate of Simple Interest ​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

the answer is: P= Rs.4000; R= 50%

Step-by-step explanation:

S.I= PRT/100

= P*R*4/100

=PR/25

Amount=P+S.I

=>P+PR/25=4800

=>25P+PR/25=4800

=>P{25+R)=4800*25

=>P(25+R)=120000

=>25P+PR=120000

=>PR=120000-25P

=>R=120000-25P/P.......(i)

NOW, S.I(2)=PRT/100

={P*120000P-25P/P*6}/100

=720000-150P/100

2nd amount=S.I+P

=>720000-150P/100+P=5200

=>720000-150P+100P/100=5200

=>720000-50P=520000

=>50P=720000-520000

=>50P=200000

=>P=4000

R=120000-25P/P (i)

=120000-(25*4000)/4000

=120000-1000000/4000

=200000/4000

=50

therefore, P= Rs.4000; R= 50%