1. During a research experiment
P. and then released several
Q. a marine biologist
R. a large holding tank
S. placed a shark into
6. small bait fish into the tank.
During a research experiment a marine biologist placed a shark into a large holding tank and then released several small bait fish into the tank.
Present ages of P and Q are in the ratio 2:5 respectively. If Q’s age, 15 years hence from now will be 5 times of P’s age, 5 years ago from now, the...
A certain sum of money becomes 4 times of itself in 15 years at simple interest. In how many years does it become double of itself at the same rate of s...
The respective ages of a mother and her daughter are 30 and 8 years. In how many years will the mother be thrice as old as her daughter?
The ratio of age of A and his son is 5:1. If the difference of their ages 6 years ago is 24, then find the sum of the ages of A and his son together 11 ...
If the total ages of A and B is 6 years more than the total age of B and C. C is how many years younger than A?
If the ratio of the ages of Karan and Saroj is 5 : 7. 8 years ago, the ratio of their ages was 2 : 3. Find the present age of Saroj?
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In a classroom there are 15 boys and 12 girls. Average age of each boy and each girl is 23 years and 17 years respectively. The sum of ages of all the b...
The ratio of the present ages of a son and his father 3:7 and that of his mother and father is 6:7. Four years ago, the ratio of the age of the son that...
The average age of 26 children and their teacher's age are 22 years. If the teacher's age is excluded, the average reduces by 1. What is the teacher's age?