Question

Find the simple interest and amount when Principal = Rs. 6400, Rate = 6% p.a and Time = 2 years

Answer 1

Answer:

P=Rs 6400,R=6%p.a,T=2 years

∴SI=

100

PRT

=

100

6400×6×2

=Rs768

∴ Amount=P+SI=Rs 7168

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Answer 2

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Simple Interest: PxRxT/100

6400×6×2/100

64×6×2

Simple Interest = 768rs.

Amount= P{1+R/100}²

= 6400{ 6/100}²

= 6400{ 1+ 3/50}²

= 6400{ 53/50}²

= 6400 ×53/50 ×53 /50

= 64 ×53×53 /25

= 7191.04

Therefore, Amount is 7191.04 and Simple Interest is 768.

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