aptitude

Problem: 20 women can finish a job in 20 days. After each day, one woman is replaced by a man or a boy alternatively starting with a man. Man is twice efficient and boy is half efficient as a woman. On which day does the job get completed? Solution: Lets treat man as 2 women and boy as half woman. Starting 1st day 1 W is removed and 1M added. [Read More]

1.Three containers A,B and C are having mixtures of milk and water in the ratio of 1:5 and 3:5 and 5:7 respectively. If the capacities of the containers are in the ratio of all the three containers are in the ratio 5:4:5, find the ratio of milk to water, if the mixtures of all the three containers are mixed together. Sol: Assume that there are 500,400 and 500 liters respectively in the 3 containers. [Read More]

1.Three containers A,B and C are having mixtures of milk and water in the ratio of 1:5 and 3:5 and 5:7 respectively. If the capacities of the containers are in the ratio of all the three containers are in the ratio 5:4:5, find the ratio of milk to water, if the mixtures of all the three containers are mixed together. Sol: Assume that there are 500,400 and 500 liters respectively in the 3 containers. [Read More]

1.When investments of A and B are Rs x and Rs y for a year in a business ,then at the end of the year (A’s share of profit):(B’s share of profit)=x:y 2.When A invests Rs x for p months and B invests Rs y for q months, then A’s share profit:B’s share of profit=xp:yq Short cuts: 1.In case of 3 A,B,C investments then individual share is to be found [Read More]