An air conditioner can cool the hall in 40 miutes while another takes 45 minutes to cool under similar conditions. If both air conditioners are switched on at same instance then how long will it take to cool the room approximately ?

If 4 (A's capital) = 6 (B's capital) = 10 (C's capital), then out of a profit of Rs. 4650, C will receive ____

4 men can repair a road in 7 hours. How many men are required to repair the road in 2 hours ?

A salesman gets commission on total sales at 9%. If the sale is exceeded Rs.10,000 he gets an additional commission as bonus of 3% on the excess of sales over Rs.10,000. If he gets total commission of Rs.1380, then the bonus he received is

Find at what time between 8 and 9 o'clock will the hands of a clock be in the same straight line but not together ?

If the cost price of 12 pens is equal to the selling price of 8 pens, the gain percent is ?

Find the angle between the hour hand and the minute hand of a clock when the time is 3.25

Janardan completes 2/3 of his work in 10 days. Time he will take to complete of the same 3/5 work, is ?

A can do a piece of work in 12 days while B alone can do it in 15 days. With the help of C they can finish it in 5 days. If they are paid Rs. 960 for the whole work. How much money A gets ?

Two spinning machines A and B can together produce 300000 metres of cloth in 10 hours. If machine B alone can produce the same amount of cloth in 15 hours. Then how much cloth can machine A produce alone in 10 hours ?