Question

average of 3 number is 7, 98 one average of first two number is 5 find the third number​

Answer 1

Answer:

answer 30

Step-by-step explanation:

the three numbers be A,B and C respectively

A:B=2:3 (1)

B:C=5:8 (2)

Multiplying (1) by 5 and (2) by 3,

A:B=10:15

B:C=15:24

A:B:C=10:15:24

Sum of ratio = 10+15+24=49

B =

49

15

×90=30