Page 300 - ICSE Math 8

2. The number x and –x are additive inverses. Which number is midway between them on a number line?
(a) 1 (b) 0 (c) –1 (d) 12
p
–4
3. (4) expressed in form equals to
q
1 1 1 1
(a) (b) (c) (d)
264 256 64 16

 − 1 2
4. By what number should   be multiplied to get the product as –12?
 2 
(a) 32 (b) 38 (c) 48 (d) – 48

5. What are the numbers which can be arranged as dot patterns in squares called?
(a) Square numbers (b) Square root numbers
(c) Triangular numbers (d) None of these
2
2
6. How many square numbers exist between 2 and 3 ?
(a) 2 (b) 3 (c) 4 (d) 6
7. Cube of an even natural number is:
(a) a prime number (b) an even natural number
(c) an odd natural number (d) none of these
8. Cube root of –2,197 is:

(a) –11 (b) –12 (c) –13 (d) –14
9. If abc is a 3-digit number, then abc – cba when divided by 33 will give quotient as:
(a) 3(a – c) (b) 3(a + b) (c) 3(b + c) (d) 3(b – c)
10. If abc is a 3-digit number, then abc + bca + cab when divided by 3(a + b + c) will give quotient as:
(a) 3 (b) 111 (c) 37 (d) a – b – c
11. What is A ∪ A′?
(a) f (b) U (c) A (d) A′
12. What is the double complement of a set, A?
(a) U (b) f (c) A (d) Unit set
13. What per cent is 200 mL of 25 L?
(a) 0.9% (b) 0.8% (c) 0.5% (d) 10%

14. What is the number whose 25% is 40.5?
(a) 164 (b) 172 (c) 167 (d) 162
15. What is the fourth proportional to 7, 14 and 16?
(a) 33 (b) 32 (c) 14 (d) 46
975
16. What is reduced to its lowest terms?
655
195 185 190 195
(a) (b) (c) (d)
132 131 132 131
17. The quantity of rice sold by two shopkeepers is in the ratio 2 : 5. If the second shopkeeper sold 25 kg
of rice, the quantity of rice sold by the first shopkeeper is:
(a) 10 kg (b) 15 kg (c) 20 kg (d) 12 kg
18. If 15 notebooks for ` 240, the cost of 12 notebooks is:
(a) `190 (b) ` 189 (c) `192 (d) ` 129

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