Question

11. ICA: B = 8:15, B: C = 5: 8 and C: D= 4:5, then A : D is equal to
(a) 2:7
(b) 4:15
(c) 8: 15​

Answer 1

Answer:

(B)4:15

Step-by-step explanation:

(i)

$\frac{a}{b} = \frac{8}{15}$

(ii)

$\frac{b}{c} = \frac{5}{8}$

(iii)

$\frac{c}{d} = \frac{4}{5}$

(i) × (iii)

(a/d)×(c/b)= 32/75

putting value of c/b from (ii)

(a/d)×(8/5)=32/75

(a/d)=(32×5)/(75×8)

=4/15

Therefore ,

a : d = 4:15 (b) option