Bank and Simple Interest Class 7 Practice Set 41 Answers Solutions Chapter 10
Hint:
∴
∴
∴ R = 10%
Hint:
The interest on Rs 3000 at certain rate of interest is Rs 600.
Let us suppose the interest on Rs 1500 at the same rate is x.
∴
∴ x = Rs 300
Principal | Rate of interest (p.c.p.a.) | Time | Interest | Amount | |
i. | Rs 4200 | 7% | 3 years | ||
ii. | 6% | 4 years | Rs 1200 | ||
iii. | Rs 8000 | 5% | Rs 800 | ||
iv. | 5% | Rs 6000 | Rs 18000 | ||
v. | % 2 | 5 years | Rs 2400 |
i.
=
= Rs 882
Amount = Principal + interest
= 4200 + 882
= Rs 5082
ii.
∴
∴
∴ P = Rs 5000
Amount = Principal + interest
= 5000 + 1200
= Rs 6200
iii.
∴
∴
∴ T = 2 years
Amount = Principal + interest
= 8000 + 800
= Rs 8800
iv. Amount = Principal + interest
∴ 18000 = Principal + 6000
∴ Principal = Rs 12000
∴
∴
∴ T = 10 years
v. R = % = 2.5 %
∴
∴
∴
∴
∴ P = Rs 19200
Amount = Principal + interest
= 19200 + 2400
= Rs 21600
Principal | Rate of interest (p.c.p.a.) | Time | Interest | Amount | |
i. | Rs 4200 | 7% | 3 years | Rs 882 | Rs 5082 |
ii. | Rs 5000 | 6% | 4 years | Rs 1200 | Rs 6200 |
iii. | Rs 8000 | 5% | 2 years | Rs 800 | Rs 8800 |
iv. | Rs 12000 | 5% | 10 years | Rs 6000 | Rs 18000 |
v. | Rs 19200 | % 2 | 5 years | Rs 2400 | Rs 21600 Maharashtra Board Class 7 Maths Chapter 10 Banks and Simple Interest Practice Set 41 Intext Questions and Activities
Question 1
Maharashtra Board Solution
Ask an adult in your house to show you a passbook and explain the entries made in it. (Textbook pg. no. 70)
Solution & Step-by-Step Answer:
(Students should attempt the above activities with the help of their parent / teacher.)
Question 2
Maharashtra Board Solution
Visit different banks and find out the rates of the interest they give for different types of accounts. (Textbook pg. no. 74)
Solution & Step-by-Step Answer:
(Students should attempt the above activities with the help of their parent / teacher.)
Question 3
Maharashtra Board Solution
With the help of your teachers, start a Savings Bank in your school and open an account in it to save up some money. (Textbook pg. no. 74)
Solution & Step-by-Step Answer:
(Students should attempt the above activities with the help of their parent / teacher.)
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