Q. If a:b=5:9 and b:c=6:11; Then Find a:c
Answer: 10:33
Notes: $latex \because a:c=\frac{a}{c}=\frac{a}{b}\times \frac{b}{c}&s=2$ $latex => \frac{5}{9}\times \frac{6}{11}=\frac{10}{33}&s=2$ $latex => \frac{a}{c}=\frac{10}{31}&s=2$ => a:c=10:31 Hence option [B] is the right answer.

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