Question
Which gas is responsible for the depletion of the ozone
layer?Solution
Chlorofluorocarbons destroy ozone molecules in the stratosphere.
Bheem is currently 25 years old, which is 25% more than Ayush’s present age. The average of Ayush and Chintu’s present ages is 34 years. Additionall...
The ratio of the present age of A to that of B is 7:9. Six years ago the ratio of 1/3 of A’s age at that time and 1/3 of B’s age at that time was 1:...
Present age of ‘K’ is 70% more than that of ‘L’. 10 years ago, ‘K’ was 2.2 times as old as ‘L’. Find the present age of ‘L’.
...A father is three times as old as his son. After 10 years, the father will be twice as old as the son. What is the son's present age?
Six years ago, a father was 5 times as old as his son. After 6 years, the father will be 3 times as old as the son. What is the son’s present age?
A’s age is 150% of what he was 3 years ago, But 75% of what it will be after 3 years. What is his present age?
8 years ago, the ratio of the ages of Kim and Lee was 7:5. The present age of Ron is 15 years more than one-fourth of Lee’s present age. Find Ron's pr...
A trader bought an article for Rs. 1200 and marked it 25% above of its cost price. If he sold it after giving a discount of Rs. 60 then find the profit ...
The ratio of age of ‘B’ after 5 years from now and age of ‘C’ 4 years ago from now is 7:4, respectively. The present age of ‘C’ is 40% of th...
Fourteen years ago, the ratio of 'Armaan' and 'Billu's ages was 6:7. Currently, 'Chikku' is 36 years old, and six years ago, the ratio of 'Billu' to 'Ch...
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