Population of Rajashthan =570 lakhs and populatin of UP=1660 lakhs. Area of Rajashtan =3 lakh `km^2` and area of UP = 2 lakh `km^2`: How amny people are there per `km^2` in both these states?

Population of Rajashthan =570 lakhs and populatin of UP=1660 lakhs. Area of Rajashtan =3 lakh km^2 and area of UP = 2 lakh km^2 : which state is less populated?

Find the areas of the rectangles whose sides are : ( c) 2 km and 3km

In one fortnight of a given month, there was a rainfall of 10 cm in a river valley. If the area of the valley is 7280 km^(2) , show that the total rainfall was approximately equivalent to the total water of three rivers, each 1072 km long, 75 m wide, and 3 m deep.

A plane is in level fight at constant speed and each of its two wings has an area of 25 m^2 . If the speed of the air is 180 km//h over the lower wing and 234 km//h over the upper wing surface, determine the plane 's mass.(Take air density to be 1kg m^-3 )

A train is travelling at the speed of 90km/h. Brakes are applied so as to produce a uniform acceleration of 0.5m/ s^(2) . Find how far the train will go before it is brought to rest.

A boy has 3 shirts and 2 coats. How many different pairs, a shirt and a coat can he dress up with ?

A train covered a certain distance at a uniform speed. If the train would have been 10 km/h faster, it would have taken 2 hours less than the scheduled time. And, if the train were slower by 10 km/h , it would have taken 3 hours more than the scheduled time. Find the distance covered by the train.

A train covered a certain distance at a uniform speed. If the train would have been 10 km/hr faster, it would have taken 2 hours less than the scheduled time and if the train was slower by 10 km/hr, it would have taken 3 hrs more than the scheduled time. Find the distance covered by the train.