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we can say that let efficiency of a man be 'e' units/day ATQ, Y × (Y - 28) × e = (Y + 12) × (Y - 32) × e Y = 48 Hence total work will be = 48 × (48 - 28) × e = 960e units Required days will be then = 960e/(48 × (3/4) × e) = (80/3) or = 26(2/3) days
The ratio of the present ages of Ginni and Binni is 9:4 respectively. Ginni is ‘n’ years older than Binni. If after 5 years, the ratio of the ages o...
Present age of ‘A’ is 50% more than that of ‘B’. If 12 years hence from now, ‘B’ will be 11 years younger than ‘A’, then find the sum of...
The ratio of the present ages of Ginni and Binni is 8:5 respectively. Ginni is ‘n’ years older than Binni. If after 5 years, the ratio of the ages o...
Present age of ‘A’ is 40% more than that of ‘B’. If 11 years hence from now, ‘B’ will be 5 years younger than ‘A’, then find the sum of ...
The sum of the ages of A and B is (3x + 10) years. 5 years ago, the ratio of their ages was 4:5. Find the present age of A, if B is 4 years older than A.
12 years ago from now, ratio of ages of ‘R’ and ‘L’ was 3:5, respectively. If ‘L’ is 8 years elder to ‘R’, then what will be the age of ...
Eight years ago, the ratio of the ages of A to B was 7:5. Currently, the average age of A, B, and C is 48 years. Twenty years from now, C will be 16 yea...
Twelve years ago, the age ratio between 'A' and 'B' was 5:4. In five years, their average age is expected to be 44 years. Determine 'A’s age eight yea...
The ratio of present ages of Alice and Bob is 5:7, respectively. Charlie, who is 3 years older than Alice, will become 40 years older after 12 years. Fi...
In a classroom there are 11 boys and 9 girls. Average age of each boy and each girl is 18 years and 15 years respectively. The sum of ages of all the bo...
