Page 53 - Concepts of Reasoning-8

CHAPTER

Worksheet-10.1 compound interest 10

Multiplication of Whole Numbers

1. Complete the table :

Principal (`) Time Rate of interest Simple interest (`) Amount (`)
a. 8,000 3 9%

b. 5 9,500 28,500

c. 32,000 8% 49,920

2. Calculate the compound interest and the amount for the following :

Principal (`) Time Rate of interest Simple interest (`) Amount (`)

a. 3,000 4 7%

b. 10,000 2 6%

c. 8,000 3 9%

3. Krishna calculated the compound interest for his fixed deposits compounding the interest half
yearly. Verify his calculation and correct them if there are any mistakes :

Principal (`) Time Rate of interest CI (`) (Compounded half yearly)

a. 6,000 2 6

b. 24,000 3 2

c. 18,000 3 5

4. Match the compound interest (compounded quarterly) for the following :

a. P = `4,000, T = 1, R = 5% i. `423.16

b. P = `15, 000, T = 2, R = 3% ii. `1,735.79

c. P = `13, 000, T = 2, R = 6% iii. `203.78

d. P = `21,000, T = 1, R = 2% iv. `923.98

e. P = `7,500, T = 3, R = 7% v. `1644.40

53 Reasoning - 8