Page 372 - Start Up Mathematics_8 (Non CCE)

Practice Questions for Problem-Based Learning

General Instructions
The practice questions given in this paper are in the form of multiple choice questions (MCQs).
The first 25 questions are stand alone MCQs whereas the rest are passage based MCQs. Each of
these questions has four options out of which only one option is correct. A student has to tick ()
the correct option.

1. A man buys mangoes at the rate of 9 for ` 1.60 and sells them at 11 for ` 2. What is his gain or
loss percent?
3
2
2
5
(a) 3 % (b) 2 % (c) 11 % (d) 2 %
11 11 3 11
2. A man sells two sheep at ` 120 each and by doing so he gains 25% on one sheep and loses 25%
on the other. What is his loss or gain percent?
(a) Loss% = 6.25 (b) Gain% = 6.25 (c) Loss% = 5.75 (d) Gain% = 5.75

3. The simple interest on ` 471 for 7 months at the rate of 2 paise per month is:
(a) ` 96.54 (b) ` 45.96 (c) ` 64.95 (d) ` 65.94

4. In how much time will the simple interest on ` 100 be ` 50 at the rate of 5% per annum?

(a) 5 years (b) 9 years (c) 10 years (d) 12 years
5. What sum put out at compound interest will amount to ` 9,261 at the end of 3 years at the rate
of 5%?
(a) ` 7,000 (b) ` 8,000 (c) ` 7,500 (d) ` 8,500

6. Rahul’s income is 25% more than Mukul’s income. The percentage of Mukul’s income in
terms of Rahul’s income is:

(a) 80 (b) 70 (c) 60 (d) 50
7. A dishonest merchant professes to sell grocery at its cost price. But he uses a false weight of
950 g for a kilogram. His gain percent is:
(a) 3 (b) 4 (c) 5.25 (d) 5.26

8. The difference between simple interest of 12% and compound interest of 12% (compounded
half-yearly) on a sum of ` 3,000 in one year is:

(a) 12.80 (b) 11.20 (c) 10.80 (d) 9.60
9. On what sum will the simple interest for 3 years at the rate of 3% per annum will amount
to ` 22.50?
(a) 250 (b) 360 (c) 550 (d) 750

10. If A and B are in the ratio 5 : 4, B and C are in the ratio 3 : 2, then A and C are in the ratio:
(a) 8 : 15 (b) 15 : 8 (c) 10 : 12 (d) 15 : 18

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