Question

(i) The mean of the age of three students Vijay, Rahul and Rakhi is 15 years. If their
ages are in the ratio 4:5:6 respectively, then find their ages.
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Answer 1

Answer:

1. the age of Vijay is 12 age of rahul is 15 and Rakhi is 18 . explanation: mean =sum of all number /total no . Suppose sum=x we get x/3 = 15 and after solve we get x = 15 × 3 =45 means x =45 So the sum of all no. are 45 . the equations prepare is 45 / 3 = 15 means our mean .So after the all ratio are multiply by 3 means 4×3 =12 ,5×3=15 and 6×3=18 .and after adding this three no the sum is 45 and after dividing the mean is 15 means the age is 12,15 and 18

Answer 2

Answer:

4,5,6 respectively

Step-by-step explanation:

4:5:6=15

4x,5x,6x =15

15x=15

x=15÷15=1

x=1

4x,5x,6x

4×1,5×1,6×1

4,5,6