For the following questions answer them individually
A boat running downstreams covers a distance of 16 km in 2 hours while for covering the same distance upstream it takes 4 hours. What is the speed of the boat in still water?
What approximate value should come in place of question mark(?) in the following equation ?
$$9876\div 24.96+215.005-?=309.99$$
Sunetra invested an amount of Rs. 50,000 to start a software business. After six months Nikhil joined her with an amount of Rs. 80,000. At the end of 3 years they earned a profit of Rs. 24,500/-. What is Sunetra’s share in the profit ?
Two girls and four boys are to be seated in a row, in such a way that the girls do not sit together. In how many different ways can it be done ?
Average weight of three boys P, T and R is $$54\frac{1}{3}$$kg while the average weight of three boys T, F and G is 53kg. What is the average weight of P, T, R, F and G ?
405 sweets were distributed equally among children in such a way that the number of sweets received by each child is 20% of the total no. of children. How many sweets did each child receive ?
Sudharshan invested Rs. 15,000 at interest @ 10 p.c.p.a for one year. If the interest is compounded every six months what amount will Sudharshan get at the end of the year?
Ratio of the earnings of A and B is 4 : 7. If the earnings of A increase by 50% and the earnings of B decrease by 25% the new ratio of their earnings becomes 8 : 7. What are A’s earnings ?
The wheat sold by a grocer contained 10% low-quality wheat. What quantity of good-quality wheat should be added to 150 kg of wheat so that the percentage of low-quality wheat becomes 5% ?