Question

The sum of three numbers is 315. if the ratio between first and second is 2:3 and the ratio between the second and third number is 4:5, then find the second number.​

Answer 1

Answer:

108

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Answer 2

Answer:

given -= a+b+c=315 -------(A)

a/b=2/3 ----------(1)

b/c=4/5----------(2)

from 1 and 2

a=2b/3

c=5b/4

From equation A

2b/3+b+5b/4=315

8b+12b+15b/12 =315

35b =315*12

b=3780/35

b=108