Question

Find A : Cin each of the following.
(i) A: B = 1:3, C: B = 4:7
o 2 4
1 3
(ii) A:B = 2/5:4/7, B: C = 1/4:3/7​

Answer 1

Answer:

1 part

answer 4:21

answe

Step-by-step explanation:

1 st part = a:b = 1:3 , b:c = 4:7

IN ORDER TO FIND A:C

WE WILL MAKE B COMMON BY TAKING LCM OF B WHICH IS 3 AND

4

ATQ EQ

A/B × A/C

= A/C

HENCE LCM = 12

SO A/B = 1×4 / 3×4

AND C/B = 4×3 / 7× 3

HENCE IT WOULD BE

4/12×12/21

SO OUR ANSWER WOULD BE 4:21