For the following questions answer them individually
A train is 250 m long. If the train takes 50 seconds to cross a tree by the railway line, then the speed of the train in km/hr is:
Mohan purchased a bag with 20 percent discount on the tab called price. He sold it with 40 percent profit on the price he bought. The percentage of profit on the labelled price is:
Ram babu donated 3% of his income to a charity and deposited 12% of the rest in bank. If now he has ₹12804, then his income was:
In $$\triangle$$ ABC, the internal bisectors of $$\angle$$B and $$\angle$$C meet at point D. If $$\angle$$A=$$80^\circ$$, then $$\angle$$BDC is of:
A motor boat covers a certain distance downstream in a river in 3 hours. It covers the same distance upstream in 3 hours and half. If the speed of the water is 1.5 km/h, then the speed of the boat in still water is :
Let AX$$\bot$$BC of an equilateral triangle ABC. Then the sum of the perpendicular distances of the sides of $$\triangle$$ABC from any point inside the triangle is:
The sides of a triangle are in the ratio of 7:9:12 The difference between the lengths of largest and smallest sides is 15 cm. The length of the largest side would be:
A boy aged 12 years is left with ₹100,000 which is under a trust. The trustees invest the money at 6% per annum and pay the minor boy a sum of ₹2500, for his pocket money at the end of each year. The expenses of trust come out to be ₹500 per annum. Find the amount that will be handed over to the minor boy after he attains the age of 18 years.