There are three persons 'Amit', 'Bhuvan' and 'Cheetan' such that 7 times the present age of 'Amit' is equal to 9 times the present age of 'Bhuvan' while 5 times the present age of 'Bhuvan' is equal 3 times the present age of 'Cheetan'. If the present ages of all three are integers and the age of 'Dheeraj' after 13 years will be equal to the sum of the minimum possible present ages of 'Amit', 'Bhuvan' and 'Cheetan', together, then find the present age of 'Dheeraj'.
Let the present ages of 'Amit', 'Bhuvan' and 'Cheetan' be 'x' years, 'y' years and 'z' years respectively According to the question, 7x = 9y Or, x:y = 9:7 = 27:21 Also, 5y = 3z Or, y:z = 3:5 = 21:35 Let 'x' and 'y' be 27a and 21a, respectively Therefore, 'z' = 21a X (35/21) = 35a Therefore, x:y:z = 27:21:35 Therefore, age of 'Dheeraj' 13 years hence from now = 27 + 21 + 35 = 83 years Therefore, required age = 83 - 13 = 70 years
Average age of company A is 21 years and average age of both companies A and B is 13 years. If the ratio of number of employees in company A and B is 3:...
‘N’ is the number of employees in an IT company ‘ABC’. The average age of employees working in the company is 45 years. What wil...
Average 20 numbers is ‘x’. If the average of first 12 numbers is 62.5 while average of last 5 numbers is 84.8 and 13th, 14th...
Average weight of a team of 16 persons is 37 kg. When one more person joins the team, the average weight of the team increases by 4 kg. Find the weight ...
The average expenditure of a man for the first 7 month is Rs.5000 and for the next 5 months is Rs.8000. If he saves 12000 in that year then find his ave...
Average weight of 10 nurses is 32 kg. If the weight of one more nurse is included, then average weight is increased by 2 kg. Find the weight of the newl...
The average cost of 3 chairs is Rs. 10000. The average cost decrease by 22% when one more chair is included. What is the cost price of the 4th
The average of 25 numbers is 22.The average of first 12 numbers is 14 and that of the last 12 numbers is 17. What will be the 25th number?
In an examination the average marks of Rohit is 65. If he got 15 more marks in science and 25 more marks in maths then his average would have been 70. F...