If five rupees can buy x pieces of paper. How many rupees are needed to buy n reams of paper ? (Note : 1 ream = 500 pieces of paper ).
a + b
(a + b) (a - b)
None of these
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 a man's weekly salary is what part of his weekly salary does he spend ?
The average of three numbers is 15. What is two times the sum of the three numbers ?
18
15
90
45
Mr. Sharma rents a car for d days. He pays p rupees per day for each of the first 7 days, and half that rate for each additional day. Find the total charge if d > 7.
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
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 ?
Let be defined for all numbers a,b,c, and d by = ac - bd. If x = , what is the value of ?
0
2
12
24
