The average of 5 quantities is 6. The average of 3 of them is 8. What is the average of the remaining two numbers?
3
3.5
4
6.5
The average age of a family of 5 members is 20 years. If the age of the youngest member be 10 years then what was the average age of the family at the time of the birth of the youngest member?
13.5
14
12.5
15
Average cost of 5 apples and 4 mangoes is Rs. 36. The average cost of 7 apples and 8 mangoes is Rs. 48. Find the total cost of 24 apples and 24 mangoes
324
720
1044
2088
A number is selected at random from first thirty natural numbers. What is the chance that it is a multiple of either 3 or 13?
11/15
17/30
2/5
4/15
Three years back, a father was 24 years older than his son. At present the father is 5 times as old as the son. How old will the son be three years from now?
12
6
9
What is the maximum percentage discount that a merchant can offer on her Marked Price so that she ends up selling at no profit or loss, if she had initially marked her goods up by 50%?
33.33 %
16.67 %
67.33 %
6.33 %
In a class 40% of the students enrolled for Math and 70% enrolled for Economics. If 15% of the students enrolled for both Math and Economics, what % of the students of the class did not enroll for either of the two subjects?
0 %
5 %
15 %
25 %
Ram, who is half as efficient as Krish, will take 24 days to complete a work if he worked alone. If Ram and Krish worked together, how long will they take to complete the work?
8
16
The length of a rope, to which a cow is tied, is increased from 19m to 30m. How much additional ground will it be able to graze? Assume that the cow is able to move on all sides with equal ease
1696 sq m
1694 sq m
1756 sq m
1896 sq m
How is X's Mother's Husband's Mother's grand-daughter related to X?
Daughter
Aunt
Sister
Cannot be determined