If 5 books cost r rupees, how many books can be purchased for 2 rupees ?
10r
How many of the numbers between 100 and 300 begin or end with 2 ?
60
90
91
110
What is the value of the expression
4
6
6.5
11
a + b
(a + b) (a - b)
None of these
If n is the first of two consecutive odd integers, and if the difference of their squares is 120, which of the following equations can be used to find their values ?
If p pieces of toffee cost x paise, 20 pieces of toffee will cost -
20px paise
One day Ram completed of his tax returns. The next day, he did of what was left. What fraction of his taxes did Ram complete over both days ?
5
25
The average of three numbers is 15. What is two times the sum of the three numbers ?
18
15
45
If 3 x +2 y = 5 a + b, and 4 x - 3 y = a + 7 b, then x is equal to -
a - 2 b
2 a + b
5 a - 6 b