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 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 ?
In a group of m workers, if b workers earn per week and the rest earn half that amount each, which of the following represents the total number of rupees paid to the entire group of workers in a week ?
The average of three numbers is 15. What is two times the sum of the three numbers ?
18
15
90
45
A certain copy machine produces 13 copies every 10 seconds. If the machines operates without interruption, how many copies will it produce in an hour ?
78
4680
578
1768
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 ).
If of the liquid contents of a can evaporates on the first day and of the remainder evaporates on the second day, the fractional part of the original contents remaining at the close of the second day is -
If 2m =4x and 2w =8x, what is m in terms of w ?
w - 1
w + 2
2w - 3
2w + 1
