Question

A: B = 5:6 and B : C = 9:11, find (i) A:C () A:B:C.​

Answer 1

Step-by-step explanation:

a:b=5:9 and b:c=6:11; Then Find a:c

[A]11:34

[B]10:33

[C]12:33

[D]None of these

10:33

\because a:c=\frac{a}{c}=\frac{a}{b}\times \frac{b}{c}

=> \frac{5}{9}\times \frac{6}{11}=\frac{10}{33}

=> \frac{a}{c}=\frac{10}{31}

=> a:c=10:31

Hence option [B] is the right answer.