If 25% of `x` is 100, then `x=`
(a) 100
(b) 200
(c) 300
(d) 400

If 2/5 of 50% of x is 10, then x= (a) 100 (b) 50 (c) 25 (d) 80

If 5/6 of 29% of x is 29, then x= (a) 290 (b) 58 (c) 120 (d) 100

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

In Figure, if A B||C D , then x= (a) 100^0 (b) 105^0 (c) 110^0 (d) 115^0

If every side of a triangle is doubled, then increase in the area of the triangle is 100sqrt(2)\ % (b) 200% (c) 300% (d) 400%

If x=100 , then 120% of x is (a) 125 (b) 115 (c) 120 (d) 110

The sum of first 20 odd natural numbers is (a) 100 (b) 210 (c) 400 (d) 420

An engine pumps water through a hose pipe. Water passes through the pipe and leaves it with a velocity of 2 ms^(1) . The mass per unit length of water in the pipe is 100 kgm^(-1) . What is the power of the engine? (a) 400 W (b) 200W (c) 100W (d) 800W

If u_i=(x_i-25)/(10),sumf_i u_i=20 ,sumf_i=100 , then x = 23 (b) 24 (c) 27 (d) 25

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