Page 154 - Maths Skills - 8

152 Maths

ASSESSMENT - 3

(For Chapters 7 to 9)

COMPETENCY BASED QUESTIONS

Multiple-Choice Questions
1. The present population of a town is 24000. If it increases at the rate 5% per annum then after 2 years
it will be:

(a) 26400 (b) 26460 (c) 24460 (d) 26640
2. If the selling price of an item is ` 150 and loss is of ` 10 then the cost price is:
(a) ` 140 (b) ` 130 (c) ` 150 (d) ` 160

3. 3:25 as a percent can be written as
1 1
(a) 24% (b) 12% (c) % (d) %
k 12 24
4. If = 7 then find the value of k.
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(a) 42 (b) 6 (c) 72 k (d) 7 k
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5. The equation for y varies directly as z and y = 9 when z = 1.
(a) y = 18z (b) y = –12z (c) y = 9z (d) y = –2z

6. A 20 acre field produces 300 bushels of rice. Let W represent the bushels produced by a 50 acre
field at the same rate. Select the correct relationship for given condition.

(a) 20 = 50 (b) 20 = 50 (c) 20 = w (d) 20 = w
300 w w 300 300 50 50 300
Fill in the Blanks
7. If x and y vary inversely as x decreases, the value of y __________.

8. S.I = __________________
9. If x – 7 = –3, then x = ______.

10. C.I. and S.I. for one year are _____________.
11. If the C.P of 18 mangoes is the same as the selling price of 16 mangoes the gain percent is
__________ .

Write ‘T’ for true and ‘F’ for false Statements
12. If we subtract same number from both sides of an equation, it remains the same.

13. A linear equation in one variable can have many solutions.
14. Discount is calculated on the market price.

15. If two quantities x and y are in direct variation, the ratio of any two values of x is equal the ratio of
the corresponding values of y.
16. 1 % of x is 50, then x = 100.
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