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Let the total number of students in school B be ‘x’. Therefore, total number of students in school A = 1.2x Number of boys in school A = 0.80 × 1.2x = 1.96x Number of boys in school B = 0.6x Required % = [(1.96x – 0.6x)/0.6x] × 100 = 60%
Four years ago, ratio of age of A and B was 1:2. Average of present age of A, B and C is 32 years. C is 6 years younger than B. What is the present age ...
The current age ratio of Riya to Renu is 4:7. In eight years, the combined age of Riya and Renu will total 93 years. What is Riya's current age?
P's current age is 27 years. After 5 years, Q's age will be
The ratio of the husband’s age three years from now to the wife’s age two years ago is 9:7. Additionally, the ratio of the husband’s age one year ...
The present ages of Vikas and Sneha are in the ratio 7:4, respectively. After 6 years from now, the sum of their ages will be 78 years. Find the present...
Age of ‘A’ after 8 years will be three time of his age 20 years ago. Eight years hence from now, ratio of ages of ‘A’ and ‘B’ will be 2:3, r...
Mother‘s age is 5 times more than her daughter age. After 6 years she would 5 times of daughter age. After further 6 years how would be of daughte...
In four years, the age ratio of 'X' and 'Y' will be 10:13, respectively. The current average age of 'Y' and 'Z' is 54 years, and the present average age...
Six years ago, the age ratio of A to B was 5:6. In nine years, their age ratio will become 8:9. Determine the difference between their current ages.