Quantitative Te...

In a class average age of 24 boys and their teacher  is 15 years. When the teacher 's age is excluded the average age decreases by one year. The age of the teacher is?

The monthly income of P and Q are in ratio 2:3 and their monthly expenses are in ratio 5:9. If  each of them save 300 per month, their monthly income is:

Man covers a certain distance by driving a car at the speed of 60 km/h and return back to the starting point at the speed of 40 km/h. Find its average speed?

Two numbers are such that the ratio between them is 3:4 but if each is increased by 3 then the ratio becomes 4:5. Find the difference between the numbers?

At present, the age of the father is five times that the age of the son. Three years hence, the father 's age would be four times that of his son. Find the present age of the father and the son?

If 25% of a number is 65, then 45% of the number will be?

A and B have money in the ratio 2:1. If A gives Rs. 2 to B, the money will be in the ratio 1:1. What were the initial amounts they had?

18 men can reap a field in 50 days. In how many days will 30 men can complete the same work?

A is working and B is sleeping partner in a firm. A invest Rs 2100 and B invests Rs 3100. A being working partner gets 25% of the profits, and the balance of the profits to be divided in the proportion to their capitals. What did each get out of profit of Rs 1040?

A man has some hens and cows. If the number of heads be 48 and the number of feet equals 140, then the number of hens will be: