Age pyramid A,B and C indicates

An urn shaped population age pyramid represents

The ratio of the ages of A,B and C is 7:5:4. If C’s age is 32 years, the sum of the age  of A, B and Ca.128b. 120c.56d.49

A is two years older than B who is twice as old as C. If the total of the ages of A, B and C be 27, then how old is B?

The present ages of A, B and C are in proportions 4 : 7 : 9. Eight years ago, the sum of their ages was 56. What are their present ages (in years)?Options16, 30, 4016, 28, 3616, 28 , 4516, 28 40

Present ages of 'A' and 'B' are in the ratio 3:5, respectively. Present ages of 'B' and 'C' are in ratio 2:3, respectively. If five years hence from now, age of 'A' will be 54% less than that of 'C', then find the present age of 'C'. a. 45 years b. 20 years c. 30 years d. 48 years