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ATQ, Surface area of the cube = 6 X (edge)2 6 X (edge)2 = 486 Or, (edge)2 = 81 So, length of the edge of the cube = 9 cm So, volume of the cube = (edge)3 = 93 = 729 cm3
Nine years ago, the ratio of ages of Asha and Usha was 2:3, respectively. Seven years hence, the ratio of ages of Vimal and Usha will be 5:6, respective...
The current age of Mike is four that of Nancy. 3 years from now, Mike's age will be two times the age of Owen at that time. If Nancy is 6 years younger ...
The sum of the present ages of 'P' and 'R' is 70 years. 'y' years ago from now, the age of 'R' was 40% more than that of 'P'. If '2y' years hence from n...
The ratio of difference between the present age of A and B to the present age of B and C is 6:1. 6 years hence, the ratio between the age of A and C is ...
The vice-captain of a cricket team of 11 members is 24 years old and the opener is 5 years older. If the ages of these two are excluded, the aver...
K is as much younger than M as he is older than O. If the sum of the ages of M and O is 100 years, what is definitely the difference between M and K’s...
Difference of ages of father and son is 24 years. Two years back age of father was twice the son's present age.
What is father's age now?
The ages of A, B and C together are 62 years. B is twice as old as A and C is 6 years older than A. What is the difference between ages of B and C?
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...
