How much less is 28Km than 42.6Km?

Suppose a car starts from a place A and travels at a speed of 40 km/h towards another place B. At the same instance, another car starts from B and travels towards A at a speed of 30 km/h. If the distance between A and B is 100 km, after how much time will the cars meet?

Naresh walked 2km 35 m in the morning and 1km 7m in the evening. How much distance did he walk in all?

You find your mass to be 42 kg on a weighing machine is your mass more or less than 42 kg ?

Choose the correct alternative from the clues given at the end of the each statement: The size of the atom in Thomson’s model is .......... the atomic size in Rutherford’s model. (much greater than/no different from/much less than.)

A truck requires 108 litres of diesel for covering a distance of 594 km. How much diesel will be required by the truck to cover a distance of 1650 km?

By how much should the height of antenna be increased to double the coverage range ? (Radius of earth 6400 km.)

Explain why Atmospheric pressure at a height of about 6km decreases to nearly half to its value at the sea level, through the height of the atmospheric is more than 100 km.

Water in a canal , 6m wide and 1.5cm deep, is flowing with a speed of 10km/h. How much are a will it irrigate in 30 minutes , if 8cm of standing water is needed ?