Question

A:B=1:2,B:C=3:4 and C:D=5:6,D:A=?​

Answer 1

Step-by-step explanation:

d is equal to 6 and A is equal to 1 that s why answer is 6 ratio 1

Answer 2

Answer:

$\frac{a}{b} = \frac{1}{2}$

$2a = b$

$\frac{c}{d} = \frac{5}{6}$

$6c = 5d$

$c = \frac{5d}{6}$

$\frac{b}{c} = \frac{3}{4}$

Substituting values of B and C

$\frac{2a}{ \frac{5d}{6} } = \frac{3}{4}$

$\frac{12a}{5d} = \frac{3}{4}$

$\frac{5d}{12a} = \frac{4}{3}$

$\frac{d}{a} = \frac{4}{3} \times \frac{12}{5}$

$\frac{d}{a} = \frac{4 \times 4}{5}$

$\frac{d}{a} = \frac{16}{5}$

Hope this helps you..!! ❤️