Madhu got married 6 years ago. Today her age is 125% times her age at the time of marriage. Her son’s age is one-tenth of her age. Her son’s age is
Correct Answer : A
If 1/2 of the number of white mice in a certain laboratory is 1/8 of the total number of mice, and 1/3 of the number of gray mice is 1/9 of the total number of mice, then what is the ratio of white mice to gray mice in the laboratory?
A lump of two metals weighing 18 g is worth Rs. 87. If their weights be interchanged, it would be worth Rs. 78.60. If the price of one metal is Rs. 6.70 per gram, find the weight of the other metal in the mixture.
The incomes of P and Q are in the ratio 3 : 2 and their expenditures are in the ratio 5 : 3. If each saves Rs. 1,000, their incomes are