Question

The mean of five numbers is 10. Two of the five numbers are 10 and 13. The remaining three numbers are in the ratio of 2:3:4. Find the numbers​

Answer 1

Answer:

10, 13, 6, 9, 12

Step-by-step explanation:

Let the numbers in ratio are 2a, 3a and 4a.

Mean = sum/no. *of observations

Therefore,

=> 10 = (10 + 13 + 2a + 3a + 4a)/5

=> 10*5 = (23 + 9a)

=> 50 = 23 + 9a

=> 50 - 23 = 9a

=> 27 = 9a

=> 27/9 = 3 = a

Numbers are

2a = 2(3) = 6

3a = 3(3) = 9

4a = 4(3) = 12