Francis has 18 eggs out of which 12 eggs were sold at 10% loss than the cost price. At what mark up should be sell the remaining eggs to cover his losses?
5%
10%
15%
20%
D.
20%
The value of k for which kx+3y-k+3 = 0 and 12x+ky = k, have infinite solutions, is
0
-6
6
1
C.
6
The least value of x, for which the expression x2+x+17 will not give a prime number, is
7
11
13
17
D.
17
If the length and height of a brick increases by 10% each respectively, and the breadth reduces by 20%, what is the percentage change in the volume of the brick?
28
26
32
40
C.
32