Question

if ci-si=1 r=4% t=2 years then find principal..​

Answer 1

Answer:

P=?

R=4%

T=2 years

SI=?

Since,SI=PRT/100

P×4×2/100

8P/100

Now for CI

P=?

R=4%

T=2years

CI=?

Since,CI=P{(1+r/100)^n-1}

P{(1+8/100)^2-1}

P(({100+8)/100)^2-1}

P{(108/100)^2-1}

P{(27/25)^2-1}

P({729/625)-1}

P{104/625}

104P/625

According to question

CI-SI=1

104P/625-8P/100=1

104P/625-2P/25=1

(104P-25(2P))/625=1

(104P-50P)/625=1

54P/625=1

P=625/54

P=Rs 11.574

P=Rs 11.57