`86+(-28)+12+(-34)` is equal to: `-36` (b) 40 (c) 36 (d) `-40`

86+(-28)+12+(-34) is equal to: (a) -36 (b) 40 (c) 36 (d) -40

(-2)x\ (-3)x\ 6\ x\ (-1) is equal to (a)36 (b) -36 (c) 6 (d) -6

(-2)\xx\ (-3)\xx\ 6\ xx\ (-1) is equal to (a)36 (b) -36 (c) 6 (d) -6

If x=3+sqrt(8), then x^(2)+(1)/(x^(2)) is equal to (a) 30 (b) 34(c)36 (d) 38

Number of proper factors of 2400 is equal to (a) 34 (b) 35 (c) 36 (d) 37

Number of proper factors of 2400 is equal to (a) 34 (b) 35 (c) 36 (d) 37

The LCM of 24, 36 and 40 is (a) 4 (b) 90 (c) 360 (d) 720

The LCM of 24, 36 and 40 is 4 (b) 90 (c) 360 (d) 720

If the side of an equilateral triangle is decreased by 20%, its area is decreased by (a) 36% (b) 40% (c) 60% (d) 64%

Find the lowest common multiple of 24, 36 and 40. (a) 120 (b) 240 (c) 360 (d) 480