If `1/5-1/6=4/x ,` then `x=` `-120\ ` (b) `-100` (c) 100 (d) 120

Find x if x/5-x/6=4 . (a)-120 (b) -100 (c) 100 (d) 120

If x=100, then 120% of x is 125 (b) 115120 (d) 110

In Fig.105, If A O B and C O D are straight lines. Then x+y= (a) 120 (b) 140 (c) 100 (d) 160

1 1 2 6 ? 120

If 25% of x is 100, then x=100(b)200300 (d) 400

If f(x)=|\(1,x,x+1),(2x,x(x-1),(x+1)x,3x(x-1),x(x-1)(x-2),(x+1)x(x-1))| then f(100) is equal to (A) 0 (B) 1 (C) 100 (D) -100

125, 123, 120, 115, 108, 100, 84 (a) 123 (b) 115 (c) 100 (d) 84

Let X={a_(1),a_(2),...,a_(6)} and Y={b_(1),b_(2),b_(3)} The number of functions f from x to y such that it is onto and there are exactly three elements x in X such that f(x)=b_(1) is 75 (b) 90( c) 100 (d) 120

(65)^(2)-(55)^(2)=?10(b)100(c)120(d)1200