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Let the efficiencies of 'P' and 'Q' be '3a' and '5a' litres/hour respectively. Total capacity of given tank = (3a + 5a) X 16 = '128a' litres Capacity of tank to be filled by pipe 'P' = (1.5) X 128a = '192a' litres New efficiency of pipe 'P' = 2 X 3a = '6a' litres/hour Required time = (192a/6a) = 32 hours
The current average age of three friends, Aravi, Bipasa, and Chinu, is 24 years. The ratio of Chinu's and Diksha's present ages is 4:5, and Bipasa's cur...
Seven years ago, 'R' and 'C' had ages in a ratio of 4:3, respectively. After seventeen years, the ratio of 'C' and 'R's ages will be 9:10, respectively....
The average age of a father, mother, and daughter is 26 years. The average age of the mother and daughter is twice the age of the daughter. If the ages ...
The ratio of age of A and his son is 9:3. If the difference of their ages 6 years ago is 36, then find the sum of the ages of A and his son together 4 y...
Present ages of 'A' and 'B' are in the ratio 3:5, respectively. If B's age, 8 years hence from now will be 3 times of A's age, 2 years ago from now, the...
If the sum of the ages of a father and his son is 60 years and the difference of their ages is 30 years, what is the father's age?
Neha was married 5 years ago. In his present age 8/7 times of his age at the time of her marriage. Her son’s age is 1/8 times of her present age, ...
7 years ago, Meera’s age was equal to the Heena’s present age. The sum of Meera’s age 10 years from now and Heena’s age 5 years ...
A school has 8 teachers and 4 administrators. The average age of the teachers is 40 years, and the average age of the administrators is 55 years. After ...
Sohan's father was 32 years old when he was born while his mother was 28 years old when his brother, who is two years younger than him, was born. What i...
