What is the compounded ratio of $3 : 5, 7 : 9$ and $15 : 28$

1; 4

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5 : 7

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9 : 8

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3 : 7

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Solution

The correct option is A $1; 4$
By the defination of compound ratio these ratio can be expressed as
$\frac{3}{5} \times \frac{7}{9} \times \frac{15}{28} = \frac{1}{4}$
Hence $1 : 4$

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Similar questions

[\frac{5}{7} \times \frac{28}{15} \times \frac{9}{8} \times 3] \div \frac{9}{2} =

Q. Find the missing term (denoted by question mark '?')

6	7	4	15
7	15	25	28
8	13	?	20
3	5	7	9

Name the property of multiplication illustrated by each of the following statements :

(i) $\frac{- 15}{8} \times \frac{- 12}{7} = \frac{- 12}{7} \times \frac{- 15}{8}$

(ii) $(\frac{- 2}{3} \times \frac{7}{9}) \times \frac{- 9}{5} = \frac{- 2}{3} \times (\frac{7}{9} \times \frac{- 9}{5})$

(iii) $\frac{- 3}{4} \times (\frac{- 3}{4} \times \frac{- 5}{6}) + (\frac{- 3}{4} \times \frac{7}{8})$

(iv) $\frac{- 16}{9} \times 1 = 1 \times \frac{- 16}{9} = \frac{- 16}{9}$

(v) $\frac{- 11}{15} \times \frac{15}{- 11} = \frac{15}{- 11} \times \frac{- 11}{15} = 1$

(vi) $\frac{- 7}{5} \times 0 = 0$

Verify the following :

(i) $\frac{3}{7} \times (\frac{5}{6} + \frac{12}{13}) = (\frac{3}{7} \times \frac{5}{6}) + (\frac{3}{7} \times \frac{12}{13})$
(ii) $\frac{- 15}{4} \times (\frac{3}{7} + \frac{- 12}{5}) = (\frac{- 15}{4} \times \frac{3}{7}) + (\frac{- 15}{4} \times \frac{- 12}{5})$
(iii) $(\frac{- 8}{3} + \frac{- 13}{12}) \times \frac{5}{6} = (\frac{- 8}{3} \times \frac{5}{6}) + (\frac{- 13}{12} \times \frac{5}{6})$
(iv) $\frac{- 16}{7} \times (\frac{- 8}{9} + \frac{- 7}{6}) = (\frac{- 16}{7} \times \frac{- 8}{9}) + (\frac{- 16}{7} \times \frac{- 7}{6})$

Multiply :
$(i) \frac{5}{6} and \frac{8}{9} (i i) \frac{2}{7} and \frac{- 14}{9} (i i i) \frac{- 7}{8} and 4 (i v) \frac{36}{- 7} and \frac{- 9}{28} (v) \frac{- 7}{10} and \frac{- 8}{15} (v i) \frac{3}{- 2} and \frac{- 7}{3}$

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What is the compounded ratio of 3:5,7:9 and 15:28

The correct option is A 1;4By the defination of compound ratio these ratio can be expressed as35×79×1528=14Hence 1:4

What is the compounded ratio of $3 : 5, 7 : 9$ and $15 : 28$

The correct option is A $1; 4$
By the defination of compound ratio these ratio can be expressed as
$\frac{3}{5} \times \frac{7}{9} \times \frac{15}{28} = \frac{1}{4}$
Hence $1 : 4$