A man has to go 10 km to catch a bus. He walks part of the way at 7 km/hr and runs the rest of the way at 12 km/hr. If he takes 1 hour 15 minutes to complete his journey, find how far he walked.

A rectangular carpet measuring 16 m by 12 m (excluding the border) has a border of width 2m on each of its sid...

A certain sum of money consists of 30 coins, some of which are 10 paisa coins and the rest are 5 paisa coins....

A wholesaler sells goods to a retailer at a profit of 20%. The retailer sells to the customer.who pays 80% mor...

Two blends of tea costing $2.80 and $3.20 per kg respectively are mixed in the proportion 2 : 3. The mixture i...

Ali bought 500 shares of company X at Tk. 600 and 2 months later bought another 250 shares of the same company...

Water flows into an empty 64-gallon drum through pipe A and flows out through pipe B. If the rate of flow thro...