a + b
(a + b) (a - b)
None of these
If 5 books cost r rupees, how many books can be purchased for 2 rupees ?
10r
A zoo has 4 times as many gorillas as tigers. There are 4 more tigers than there are zebras at the zoo. If z represents the number of zebras, in terms of z, how many gorillas are in the zoo ?
4z + 3
z + 4
z + 8
4z +16
If 2m =4x and 2w =8x, what is m in terms of w ?
w - 1
w + 2
2w - 3
2w + 1
If . What is the value of
6
A snapshot measures It is to be enlarged so that the longer dimension will be 4 inches. The length of the enlarged shorter dimension will be -
3 inches
A man spends of his income on food, of it on house rent and the remaining which is on other commodities. Find his house rent.
A certain type of board is sold only in lengths of multiplies of 2 metres. The shortest board sold is 6 metres and the longest is 24 metres. A builder needs a large quantity of this type of board in metres lengths. For minimum waste, the lengths to be ordered should be-
10 metres
12 metres
22 metres
24 metres