If $a : b = 5 : 9$ and $b : c = 4 : 7$ find $a : b : c$

5 : 9 : \frac{63}{4}

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20 : 63 : 36

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4 : 36 : 63

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20 : 36 : 63

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Solution

The correct options are
A $5 : 9 : \frac{63}{4}$
D $20 : 36 : 63$
Given, $a : b = 5 : 9$ and $b : c = 4 : 7$ $=$ $(4 \times \frac{9}{4}) : (7 \times \frac{9}{4}) = 9 : \frac{63}{4}$
$\Rightarrow a : b : c = 5 : 9 : \frac{63}{4} = 20 : 36 : 63$

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Similar questions

Find the value using BODMAS.

$63 - 9 + 36 \div 6 \times 4 = ?$

Question 107

Find the odd one out of the following and give reasons.

$(a) \frac{4}{- 9} (b) \frac{- 16}{36} (c) \frac{- 20}{- 45} (d) \frac{28}{- 63}$

If \frac{A}{4} = \frac{B}{9} = \frac{C}{7} then A:B:C is :

Find

(i) (ii) (iii)

(iv) (v)

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