Question 1

Find the compound interest on Rs.1000 at 20% for 2 years.

Accepted Answer

CI = 1000[(1.2)^2 -1] = 440

Question 2

What will be the amount on Rs.2000 at 20% compound interest for 2 years?

Accepted Answer

A = 2000(1.2)^2 = 2880

Question 3

Find the compound interest on Rs.4000 at 10% for 3 years.

Accepted Answer

A = 4000(1.1)^3 = 5324, CI = 1324

Question 4

What is the amount on Rs.1200 at 10% compound interest for 2 years?

Accepted Answer

A = 1200(1.1)^2 = 1452

Question 5

Find the compound interest on Rs.2500 at 12% for 2 years.

Accepted Answer

CI = 2500[(1.12)^2 -1] = 636

Question 6

What will be the amount if Rs.5000 is invested at 10% compound interest for 2 years?

Accepted Answer

A = 5000(1.1)^2 = 6050

Question 7

Find the compound interest on Rs.3000 at 10% for 2 years.

Accepted Answer

CI = 3000[(1.1)^2 -1] = 630

Question 8

What is the compound interest on Rs.1500 at 8% for 1 year?

Accepted Answer

CI for 1 year = SI = 1500×8/100 = 120

Question 9

Find the amount on Rs.2000 at 5% compound interest for 2 years.

Accepted Answer

A = P(1+R/100)^T = 2000(1.05)^2 = 2205

Question 10

What will be the compound interest on Rs.1000 at 10% per annum for 2 years?

Accepted Answer

CI = P[(1+R/100)^T -1] = 1000[(1.1)^2 -1] = 210

While selling soap, a dealer charges for 1000 grams but gives only 920 grams. Calculate the gain percentage.

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