If b- a-c- d- then a- b- c- d are in proportion-A- TrueB- False

The correct option is B Falseb/a=c/d...................(according to the question) but a/b≠b/a ∴ a/b or a:b is different from b/a or b:a ∵ c/d≠d/c ∴ a,b,c,d ar ...

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Byju's Answer

Standard VI

Mathematics

Proportions

If b: a=c: d,...

Question

If b : a = c : d, then a, b, c, d are in proportion.

True

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False

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Solution

The correct option is B False
$\frac{b}{a} = \frac{c}{d}$ ...................(according to the question)
$b u t \frac{a}{b} \neq \frac{b}{a}$
$∴ \frac{a}{b}$ or a:b is different from $\frac{b}{a} o r b : a$
$∵ \frac{c}{d} \neq \frac{d}{c}$
$∴ a, b, c, d$ are not in proportion.

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If b : a = c : d, then a, b, c, d are in proportion.

The correct option is B Falseba=cd...................(according to the question) but ab≠ba ∴ ab or a:b is different from ba or b:a ∵ cd≠dc ∴ a,b,c,d are not in proportion.

The correct option is B False
$\frac{b}{a} = \frac{c}{d}$ ...................(according to the question)
$b u t \frac{a}{b} \neq \frac{b}{a}$
$∴ \frac{a}{b}$ or a:b is different from $\frac{b}{a} o r b : a$
$∵ \frac{c}{d} \neq \frac{d}{c}$
$∴ a, b, c, d$ are not in proportion.