A driver of auto rickshaw makes a profit of 20% on every trip when he carries 3 passengers and the price of petrol is Rs. 30 a litre. Find the % profit for the same journey if he goes for 4 passengers per trip and the price of petrol reduces to Rs. 24 litres? (revenue per passenger is same)
A factory buys 7 machines 2 Machine A, 2 Machine B and reset Machine C. Prices of the Machines are тВ╣ 43000 respectively. Calculate the average cost of these machines.
A family consists of a husband and wife, their three sons and two daughters, three wives of three sons. How many females are in this family?
A family consists of grandparents, parents and three grandchildren. The average age of the grandparents is 67 years that of the parents is 35 years and that of the grandchildren is 6 years. What is the average age of the family?
A family consists of two grandparents, two parents and three grandchildren. The average age of the grandparents is 67 years, that of the parents is 35 years and that of the grandchildren is 6 years. What is the average age of the family?
A family has two grandparents, two parents and four children. Two years ago, the average age of grandparents was 72 years. A year ago, the average age of parents was 36 years. Currently, the average age of children is 12 years. What is the current average age of the family?
A farmer has 945 cows and 2475 sheep. He farms them into flocks, keeping cows and sheep separate and having the same number of animals in each flock. If these flocks are as large as possible, then the maximum number of animals in each flock and total number of flocks required for the purpose are respectively ?
A father is 30 years older than his son however he will be only thrice as old as the son after 5 years what is father,s present age ?
A father is now three times as old as his son. 5 yr back, he was four times as old as his son. The age of the son (in year) is
A father is twice his son’s present age. How many years ago, was he three times his son’s age, if his son’s age is now 20 years?
