Question

mohan purchased a TV set for ₹12000. he promised to pay back the full amount along with interest after 3 years. if the shopkeeper charges at the rate of 20%per annum calculate the compound interest he will have to pay after 2 years​

Answer 1

Step-by-step explanation:

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Answer 2

Given :-

• Price of TV = Principal = Rs.12000 .
• Rate = 20% per annum .
• Time = 3 years .

To Find :-

• The compound interest he will have to pay after 3 years ?

Solution :-

we know that, when rate is compounded annually ,

• A = P[1 + (R/100)]ᵀ
• CI = A - P
• Where,
• A = Amount .
• P = Principal .
• R = Rate of interest per annum .
• T = Time .
• CI = Compound interest .

so,

→ A = 12000[1 + (20/100)]³

→ A = 12000[1 + (1/5)]³

→ A = 12000(6/5)³

→ A = (12000 * 216)/125

→ A = Rs.20736 .

therefore,

→ CI = A - P

→ CI = 20736 - 12000

→ CI = Rs.8736 (Ans.)

Hence, the compound interest he will have to pay after 3 years is Rs.8736 .

Learn more :-

*द.सा.द.शे 10 % चक्रवाढव्याज दराने 2 वर्षांत 52000 रुपयांची रास 57600 रुपये होते. तर चक्रवाढव्याज किती?*

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