Question
What can be the effects of noise pollution on human
health? 1. Damage to the ear and temporary or permanent hearing loss often called ‘a temporary threshold shift’. 2. Irritability, anxiety and stress 3. Lowered worker efficiency and productivity 4. Loss of vision Select the correct answer using the codes given below.Solution
The correct answer is C
The sum of ages of 4 children born at the intervals of 2 years each is 36 years. Find out the age of the youngest child.
- The present ages of 'P', 'Q' and 'R' are in the ratio 2:5:7. The age difference between 'P' and 'R' is 20 years. After 'm' years, age of 'Q' will be 50% mo...
Shalini is younger than Rashi by 3 years. If the ratio of Shalini and Rashi ages is 10:11 respectively, then find the age of Shalini.
Four years ago, the age of the mother was 12 times the age of her daughter. Two years hence, the mother's age will be 4 times the daughter's age. After ...
Determine the ratio of the present ages of Chintu to Danny if, 12 years ago, the ratio of Sunita's age to Binita's age was 9:5, and Sunita's age, 6 year...
The ages of A, B and C together are 60 years. B is thrice as old as A and C is 5 years older than A. What is the difference between ages of B and C?
The average age of three ladies is 30 years and their ages are in the ratio of 4: 6: 8. The age of the youngest lady is:
7 years ago, the ratio of the ages of A and B was 1:2 and after 7 years it will become 3:5. Find their present ages.
The present age of A is 4 years more than the present age of B. 5 years ago, A's age was twice that of B. What are the present ages of A and B?
8 years ago from now, ratio of ages of ‘R’ and ‘L’ was 3:5, respectively. If ‘L’ is 7 years elder to ‘R’, then what will be the age of �...
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