A, B and C can do a job working alone in 50, 75 and 20 days respectively. They all work together for 4 days, then C quits. How many days will A and B take to finish the rest of the job?
LCM of 50,75 an 20 is 300 units Each day A can do 300/50 =6 units Each day B can do 300/75 =4 units Each day A can do 300/20 =15 units In each day 6+4+15=25 units for 4 days they do 4*25=100 units Each day A and B an together do 10 units Therefore 200/10 =20 days
In a mixture of milk and water, there is only 16% water. After replacing the mixture with 8 liters of pure milk , the percentage of milk in the mixture ...
In what ratio coffee at 265 Rs/kg should be mixed with the coffee at 305 Rs/kg so that after mixture its rate become 280 Rs/kg if the quantity of 1st ty...
A man sold one shirt and one t-shirt for Rs. 4000 on shirt he gained 21% and he lost 14% on t-shirt. If overall profit is 7%, then cost price of t-shirt is
There are three mixtures A, B and C. Mixture A contains 11% of water and B contains 16% of water. If A and B are mixed together than resultant mixture c...
In what ratio coffee at 285 Rs/kg should be mixed with the coffee at 320 Rs/kg so that after mixture its rate become 300 Rs/kg if the quantity of 1st ty...
A jar contains a mixture of orange juice and water in the ratio of 4:1. 75 litres of the mixture was taken out and 25 litres of water was added to it. I...
A milk vendor has 93 litres of cow pure milk, 62 litres of toned milk and 124 litres of double toned milk. If he wants to pack them in cans so that each...
A shopkeeper has 112 kg rice a part of it, he sells at the profit of 40% and rest at loss of 16% and he get the loss of 12% so what is the quantity sold...
A shopkeeper has 36 kg rice a part of it, he sells at the profit of 32% and rest at loss of 16% and he get the loss of 12% so what is the quantity sold ...
The combined Average marks of Boys and girls of a class is 66 and the ratio of number of boys and girls is 3:1 and the average marks of the boys is 68. ...