In a row of boys, if A who is tenth from the left and B who is ninth from the right interchange their positions, A becomes fifteenth from the left, How many boys are there in the row?

A,B and C enter into partnership. A invests some money at the beginning, B invest double the amount after 6 mo...

100 oranges are bought at the rate of Tk. 350 and sold at the rate Tk. 48 per dozen. The percentage of profit...

A car is running at a speed of 108 kmph. What distance will it cover in 15 seconds?

A clock is started at noon. By 10 minutes past 5, the hour hand has turned through:

If the average marks of three batches of 55,60 and 45 students respectively is 50,55 and 60, then the average...

Identify the wrong number in the series: 69, 55, 26, 13, 5