A man travelled a distance of 80 km in 7 h partly on foot at the rate of 8 km/h and partly on bicycle at 16 km/h. The distance travelled on foot is

Three taps A, B and C together can fill an empty cistern in 10 min. Tap A alone can fill it in 30 min and tap B alone in 40 min. How long will tap C alone take to fill it?

The average of six numbers is 32. If each of the first three numbers is increased by 2 and each of the remaining three numbers is decreased by 4, then the new average is

A solid sphere of 6 cm diameter is melted and recast into 8 solid spheres of equal volume. The radius (in cm) of each small sphere is

A is twice as good a workman as B and together they finish a piece of work in 14 days. The number of days taken by A alone to finish the work is

A box filled with paper bundles weighs 36 kg. If the weights of the box and paper bundles respectively are in the ratio 3 : 22, then the weight of the papers (in g) is

A shopkeeper sells an article at a loss of 12 1/2 %. Had he sold the article for ₹51.80 more, he would have earned a profit of 6%. The cost price of the article is

A copper rod of 1 cm diameter and 8 cm length is drawn into a wire of uniform diameter and 18 m length. The radius (in cm) of the wire is

A moving train passes a 50 m long platform in 14 sec and a lamp-post in 10 sec. The speed of the train is