In a group of buffaloes and ducks, the number of legs are 24 more than twice the number of heads. What is the number of buffaloes in the group ?
A). 6
B). 10
C). 8
D). 12
If a × b = 2a - 3b + ab, then 3 × 5 + 5 × 3 is equal to :
A). 22
B). 23
C). 24
D). 25
Find x if x/5 - x/6 = 4.
A). - 120
B). - 100
C). 100
D). 120
If x = 1 - q and y = 2q + 1, then for what value of q2x is equal to y ?
A). -1
B). 0
C). 1/2
D). 2
0.2 + 0.2 - 0.2 / 0.2 * (0.2 * 0.2), on simplification, gives :
A). 0.04
B). 0.2
C). 0.36
D). 1