City A has a population of 136000 which is decreasing at the rate of 2400 per year. City B has a population of 84000 which is increasing at the rate of 1600 per year. In how many years, will the population of two cities become equal?
A man had 170 currency notes in all, some of which were of ₹ 100 denominations and some of ₹ 50 denominations. The total amount of all these currency notes was ₹ 10000. How much amount did he have in the denominations of ₹ 50?
Mr Sahni employed a worker for a certain work to be done in some days. He pays ₹ 20 to the worker for each working day and the payment is reduced by ₹ 3 for each non-working day of the worker. For how many days the worker does remain absent from work if at the end of 120 days, he gets ₹ 560 as total remuneration?
A container of milk was full. When 12 bottles of milk were taken out and 8 bottles of milk were poured into it, it was full. How many bottles of milk can the container contain?
It is required to get 40% marks to quality an exam. A candidate scored 200 marks and failed by 8 marks. What were the maximum marks of that exam?
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