Question

Q.9 - The sum of three numbers is 123. If the ratio between first and
second numbers is 2:5 and that of between second and third is 3:4,
then find the difference between second and the third number.
A. 12
B. 14
C. 15
D. 17​

Answer 1

Answer:

15

Step-by-step explanation:

1st to 2nd=2:5

2nd and 3rd = 3:4

2/5,3/4

2/5=6/15

3/4=15/20

6:15:20=123

2nd= 15/41*123=45

3rd=20/41*123=60

60-45=15