Question

If a:b::c:d then,

(a) a x b = c x d
(b) a + b = c + d
(c) a x d = b x c
(d) a + d = b + c

Answer 1

Answer:

(c)

Step-by-step explanation:

Because if two ratios are in proportion than

PRODUCT OF EXTREMES = PRODUCT OF MEANS

SO , a×d= b×c

Answer 2

Given :-

a : b : : c : d

To Find :-

(a) a x b = c x d

(b) a + b = c + d

(c) a x d = b x c

(d) a + d = b + c

Explanation :-

$➝ \: \: a : b : : c : d \\ \\ ➝ \: \: \frac{a}{b} = \frac{c}{d} \: \: \: \: \: \: \: \:$

$➝ \: \: a \times d = b \times c$

i hope it helps you