Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

## #1 2007-12-29 20:21:55

ganesh
Moderator

Offline

### Middle School Mathematics - II

1. The product of two numbers is 4332. If their Greatest Common Divisor is 19, find their Least Common Multiple.

2. What must be subtracted from -3 to get -9?
(a) 6    (b) -6     (c) 12     (d) -12

3. What must be added to -236 to get -308?
(a) 72   (b) 544   (c) -72   (d) -544

4. The sum of two integers is 93. If one of the integers is -59, then the other integer is:-
(a) 34    (b) -34    (c) 152     (d) -152

5. 47-(-32) = ?
(a) 15   (b) -15    (c) 79   (d) None of these

6. (-185)+(-37) = ?
(a) -5   (b) 5    (c) 222   (d) -222

7. 0 + (-7) = ?
(a) 7    (b) -7    (c) None of these

8.

(a) -1     (b) 1    (c) None of these

9. The square of (-10) added to the cube of (-5) gives:-
(a) -15    (b) 225     (c) -225    (d) -25

10.  16 + 18 x 2 - 4 + 2 = ?

11. 18 - [ 25 - {45(6+9÷3)}] = ?

12. What must be added to x² to get 1?
(a) 1+x² (b) -1-x²  (c) 1-x²  (d) x²-1

13. What must be added to x²-x-3 to obtain -x²+4x-6?
(a) 3x-9    (b) 2x²-5x+3   (c) -2x²+5x-3   (d) 5x-3

14. A number when divided by 6 is reduced by 40. The number is:-
(a) 48    (b) 60    (c) 72   (d) 84

15. Four-fifth of a number is 10 more than two-third of a number. The number is:-
(a) 45     (b) 55    (c) 60    (d) 75

16. If 10 is added to four times a number, the result is five less than five times the number. The number is :-
(a) 15    (b) 20    (c) 25     (d) 35

17. The sum of three consecutive odd numbers is 21. The middle one is:-
(a) 5    (b) 7    (c) 9    (d) 11

18. Four-fifths of a number exceeds its two-third by 8. The number is:-
(a) 30   (b) 45    (c) 60    (d) 90

19. A number exceeds its one-seventh by 84. The number is:-
(a) 12   (b) 14   (c) 98    (d) 96

20. The cost of 40 packets of 12 pens is \$1680. The cost of 30 packets each containing 9 such pens is:-
(a) \$1260     (b) \$945   (c) \$1080    (d) \$1560

Character is who you are when no one is looking.