Q1. A 12 litre solution is 33 1/3% acid. How much water must be added to get the solution having 20% acid?
Q2. A labourer is engaged for 20 days on the condition that he will receive Rs.60 for each day he works and he will be fined Rs.5 for each day he is absent. If he receives Rs.745 in all, for how many days he remained absent?
Q3. A 90 kg solution has 10% salt.How much water must be evaporated to leave the solution with 20% salt?
Q4. In a meeting a motion was carried by a majority of one sixth of the votes .If 75 of those who voted for the motion had voted against it,the motion would have been lost by 50 votes.How many votes were there?
Q5. At an election there were two candidates Aand B, 2/5 of the electors voted for A who was elected by a majority of 200 votes over B,while 1/3 of the electors did not vote at all. How many electors were there?