2p=p×8×r/100 i want Rate how should i do.
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Answered by
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2p=p*8*r/100
=> 2=8r/100
=>r=2*100/8
=>r=25% as rate is always in percentage
=> 2=8r/100
=>r=2*100/8
=>r=25% as rate is always in percentage
uma5757:
can you pls ans this question: A certain sum of money doubles itself at simple interest in 8 years. In how many years will it be three times at the same rate?
3p=p*t*25/100 => t=12 years
ans : 16 not 12.
in 16 years the amount will become 4 times
Answered by
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Here we may take r as the rate of interest.
2p = p×8×r/100
2p *100 / p * 8 = r
200/8 = r
r =25
r %=25%.
Rate of interest is 25%
2p = p×8×r/100
2p *100 / p * 8 = r
200/8 = r
r =25
r %=25%.
Rate of interest is 25%
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