Value of 4! -3! _______. (a) 24 (b) 6 (c) 12 (d) 18

Find the highest common factor of 36 and 84 . (a) 4 (b) 6 (c) 12 (d) 18

If the standard deviation of 2x_(i) + 3 is 8 , then the variance of (3x_(i))/(2) . (a) 24 (b) 36 (c) 6 (d) 18

If a-b=3 and a^(2)+b^(2)=29, find the value of ab. (a) 10 (b) 12 (c) 15 (d) 18

If [(2a+b,a-2b),(5c-d,4c+3d)]=[(4,-3),(11,24)] then the value of a+b-c+2d is (a) 8 (b) 10 (c) 4 (d) -8

The value of 30% of 60% of 200 is (a)23 (b) 24 (c)18 (d) 36

If 1 = 2 , 3 = 6 , 4 = 8 , and + = - , what would be the value of 41+ 34 + 13= ? (A) -88 (B) 88 (C) 12 (D) -12

Q52. If M.D. is 12, the value of S.D. will be:(a) 15(b) 12(c) 24(d) none of these

If the average of 5 numbers is 10, the number which should be added to make the average 12 is (a) 12 (b) 18 (c) 22 (d) 24

If 5:430:x, then the value of x is 24 (b) 12 (c) (3)/(2)( d) 6

The L.C.M.of (3)/(4),(6)/(7),(9)/(8) is (a) 3 (b) 6(c) 9 (d) 18