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Total age of A, B, and C = 48 × 3 = 144 years Let age of A and C is 3x and 5x respectively. Age of B = 3x × 4/3 = 4x According to question, => 3x + 4x + 5x = 144 => 12x = 144 => x = 12 Required difference = (4 × 12 − 2) − (3 × 12 + 5) = 5 years
The average age of A and B is 19 years. If A is to be replaced by C, the average would be 18 years. The average age of C and A is 20 years. Find the age...
The average age of 32 children and their teacher's age are 28 years. If the teacher's age is excluded, the average reduces by 1. What is the teacher's age?
The average of 11 observations is 60. If the average of first five observations is 58 and that of last five is 56, the sixth observation is
2 years ago, the average age of the family of 3 members is 13 years. A baby is born now; the average age of the family is same as before. Find the age o...
The average run rate of a cricket team during the first 20 over’s is 4.5. What should be the asking rate per over for the next 30 over’s. if it has...
Quantity I: The average weight of 30 people is increased by 1.5 kg when one man weight 48 kg is replaced by another man. Find the weight of new man?...
Three natural numbers are given. If sum of average of any two numbers and the remaining third number is 56, 46 and 50 respectively, then find the sum o...
There are three numbers such that when the average of any of the two numbers is added with the third number, sum obtained will be 130, 142 and 154. Find...
The average of four consecutive odd numbers is 34. Find the largest of these numbers.
The average cost of two chairs is Rs.10000. The average cost decrease by 20% when one more chair is included. What is the cost price of the 3rd
