Choose the correct option
Statement I: Ozone layer present in troposphere absorbs UV radiations from the sun
Statement II: Troposphere is the densest part of atmosphere
Tropospheric ozone is an atmospheric pollutant while ozone layer present in stratosphere absorbs UV radiation from the sun
In a classroom there are 15 boys and 13 girls. Average age of each boy and each girl is 21 years and 17 years respectively. The sum of ages of all the b...
The sum of the present ages of two cousins is 54 years. Eleven years ago, the older one was thrice as old as the younger one. What is the present age of...
B is 3 years older than A and A is 7 years older than C. If the sum of the age of A and C is 27 years, then find the sum of the ages of all three.
The ratio of the present ages of father and his son is 7:4. The product of their ages 4 years ago was 31 times of his son’s age that year. What was so...
P says to Q ‘’ I am thrice as old as you were when I was as old as you are’’. The sum of their ages is 100 years. Find the difference of their ...
My grandfather’s age was seven times older to me 14 years ago. He would be two times of my age seven years from now. Seven years ago, what was the...
2 years ago, age of A and B was in the ratio 2:3. After 6 years, the ratio becomes 6:7. Present age of C is 6 years more than the present age of B. Find...
The ages of A, B and C together are 54 years. B is thrice as old as A and C is 4 years older than A. What is the difference between ages of B and C?
A is younger than B by 5 years. If the ratio of A and B ages is 7:8 respectively, then find the age of A.
Sum of the present ages of A, B, C and D is 70 years. After 5 years ratio of their ages is 5:4:3:3. What is C’s present age?
