Question

a) 5%
(b) 4%
070
(c) 2-%
2
4. Nupur bought a coloured T.V. set for 20000. If the shopkeeper charges interest at
15% per annum compounded annually, what C.I. will she pay after 3 years?​

Answer 1

Answer:

Principal=20000

Rate =15

Time=3 years

C. I= P [{1+R/100}^n-1]

C. I = P [{ 1+15/100 }³-1]

C. I= P [ { 115/100}³-1]

C. I= P [ {23/20}³-1]

C. I= P[(539/400)-1]

C. I =P[(529-400)/400]

C. I = P[129/400]

C. I= 20000(129/400)

C.I = 50×129

C.I= 6450

COMPOUND INTEREST =RS 6450

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Answer 2

Principal=20000

Rate =15

Time=3 years

C. I= P [{1+R/100}^n-1]

C. I = P [{ 1+15/100 }³-1]

C. I= P [ { 115/100}³-1]

C. I= P [ {23/20}³-1]

C. I= P[(539/400)-1]

C. I =P[(529-400)/400]

C. I = P[129/400]

C. I= 20000(129/400)

C.I = 50×129

C.I= 6450

COMPOUND INTEREST =RS 6450

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