1 |
The average of five numbers is 54. If three of the numbers are 26, 28 and 30, what is the average of the other two ? |
91
93
54
186
|
2 |
What is the average of x, y and z ? If x + y = 5, y + z = 8 and x + z = 11. |
11/3
1/2
13/5
4
|
3 |
What is the average of first hundred natural numbers ? |
50
50.5
49.5
100
|
4 |
The average of even integers from 2 to 100 inclusive is: |
49
52
51
50
|
5 |
Green paint is obtained from blue and yellow paint in the ratio 3 : 5. How much of each colour is needed to make 40 litres of this green paint ? |
Blue paint 15 litres, yellow paint : 25 litres
Blue paint: 25 litres, yellow paint: 15 litres
Blue paint: 10 litres, yellow paint: 30 litres
Blue paint: 13 litres, yellow paint: 27 litres
|
6 |
A recipe requires 13 gram of sugar and 18 gram of flour. If only 100 gram of sugar is used, how much flour, to the nearest gram, should be used ? |
16
13
14
17
|
7 |
If the ratio of boys and girls in a class is 3 : 5 and the class contains 24 students, how many additional boys would have to enroll to make the ratio of boys to girls 1 : 1 ? |
9
15
6
12
|
8 |
If the ratio of a : b is 9 : 7 then a + b is: |
14
16
63
not possible
|
9 |
If a jet travels 1280 km in 2 hours, how far will it travel in 5 1/2 hours, at the same speed ? |
2100
3300
2700
3520
|
10 |
If 15 workers can paint a certain number of houses in 24 days, how many days will 40 workers take, working at the same rate, to do the same job ? |
12 days
18 days
15 days
9 days
|
11 |
Win/Loss ratio for two teams are A,5 : 2 and B, 7 : 3 which team has the better record ? |
A
B
both A and B
wrong question
|
12 |
What is the ratio of the circumference of a circle to its radius ? |
π
π/2
2πr
2π
|
13 |
If 80 % application to a program were rejected, what is the ratio of the number accepted to the number rejected ? |
1 : 4
4 : 1
1 : 8
3 : 8
|
14 |
If the ratio of x and y is 11/3, what is the value of 2x to y ? |
11/6
22/6
22/3
11/5
|
15 |
A machine produces 1280 parts in 16 hours. How many parts would it make in a working week of 44 hours ? |
2530
3520
2122
3960
|
16 |
Three business partners shares have profit of Rs. 24000 in the ratio 5 : 4 : 3. What is the amount of the least share ? |
6000
8000
10,000
1200
|
17 |
Concrete consists of cement, sand and screenings in the ratio of 1 : 5 : 4, what is the percentage of the sand mixed ? |
10%
40%
50%
60%
|
18 |
In a city 90% of the population own a car, 15% own a motorcycle, and everybody owns one or the other or both. What is the percentage of motorcycle owners to who own cars ? |
15%
5%
75%
33 1/3%
|
19 |
Jafer drew a square. He then erased it and drew a second square whose sides were 3 times the sides of the first square. By what percent was the area of the square increased ? |
300%
800%
400%
200%
|
20 |
In a school of 820 students, 55% are boys. The number of girls and the number of boys are: |
369 boys, 451 girls
281 boys, 539 girls
539 boys, 281 girls
451 boys, 369 girls
|