Problem Solving MCQ Set 15

Question: A, B and C enter into a partnership by investing Rs.3600, Rs.4400 and Rs.2800. A is a working partner and gets a fourth of the profit for his services and the remaining profit is divided amongst the three in the rate of their investments. What is the amount of profit that B gets if A gets a total of Rs. 8000?

1. 4888.88
2. 9333.33
3. 4000
4. 3666.66

Question: A, B and C, each of them working alone can complete a job in 6, 8 and 12 days respectively. If all three of them work together to complete a job and earn Rs.2340, what ill be C's share of the earnings?

1. Rs.520
2. Rs.1080
3. Rs.1170
4. Rs.630

Question: A 20 litre mixture of milk and water contains milk and water in the ratio 3 : 2. 10 litres of the mixture is removed and replaced with pure milk and the operation is repeated once more. At the end of the two removal and replacement, what is the ratio of milk and water in the resultant mixture?

1. 17 : 3
2. 9 : 1
3. 3 : 17
4. 5 : 3

Question: In what ratio must a person mix three kinds of tea costing Rs.60/kg, Rs.75/kg and Rs.100 /kg so that the resultant mixture when sold at Rs.96/kg yields a profit of 20%?

1. 1 : 2 : 4
2. 3 : 7 : 6
3. 1 : 4 : 2
4. None of these

Question: A merchant mixes three varieties of rice costing Rs.20/kg, Rs.24/kg and Rs.30/kg and sells the mixture at a profit of 20% at Rs.30 / kg. How many kgs of the second variety will be in the mixture if 2 kgs of the third variety is there in the mixture?

1. 1 kg
2. 5 kgs
3. 3 kgs
4. 6 kgs

Question: How many litres of water should be added to a 30 litre mixture of milk and water containing milk and water in the ratio of 7 : 3 such that the resultant mixture has 40% water in it?

1. 7 litres
2. 10 litres
3. 5 litres
4. None of these