Question

Find A : B : C when A : B = 4 : 5 and B : C = 15 : 7. Also find A : C explain pls ​

Answer 1

Answer:

A:B:C = 12:15:7, A:C = 12:7

Step-by-step explanation:

A:B = 4:5 = $\frac{4}{5}$ : $\frac{5}{5}$ = $\frac{4}{5}$ : 1

B:C = 15:7 = $\frac{15}{15} : \frac{7}{15}$ = $1:\frac{7}{15}$

∴ A:B:C = $\frac{4}{5}$ : $1:\frac{7}{15}$ = 12:15:7

∴ A:C = 12:7

Hope this helps!

Answer 2

Answered below,

Step-by-step explanation:

given is - A/B=4/5 --- 1

B/C=15/7 --- 2

to find - A/C and A:B:C

Solution - B= 5A/4 (FROM ---1)

substituting this value in ---2

we get, 5A/4C=15/7

A/C=12/7.

A:B:C= 12:15:7