A car travelled 36 km at 6km/hr faster than the usual speed but it returned the same distance at 6kmph slower than the usual speed. If the total time taken by the car is 8 hrs. For how many hours does the car travelled at faster speed.
Vijay bought a fridge and a washing machine together for Rs. 38,200. He sold the fridge at a profit of 15% and washing machine at a loss of 24% and both are sold at the same price. The cost price of the washing machine is:
The angles of elevation of the top of a building from the top and bottom of a tree are x and y respectively. If the height of the tree is h meter then, in meter, the height of the building is: