A container has 10 litres of a 10% solution of sulphuric acid. How much more acid must be added to obtain a 25% solution
Correct Answer : A
A watermelon weighs 5000gms .99% of its weight is water.It is kept in a drying room and after some time it turns out that it is only 98% by weight.What is its weight now?
In how many years will a sum of Rs 800 at 10% per annum compounded semi-annually becomes Rs 926.10
Anuradha purchased 30 kg of rice at the rate of Rs 11.50 per kg and 20 kg of rice at the rate of Rs 14.25 per kg. She mixed the two and sold the mixture. Approximately at what price per kg should she sell the mixture to make 30 per cent profit