Find the compounded ratio of $18 : 9, 16 : 13$ and $6 : 9$

3 : 17

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5 : 8

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3 : 5

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64 : 39

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Solution

The correct option is D $64 : 39$
By the defination of compound ratio $18 : 9, 16 : 13$ and $6 : 9$ can be expressed as
$\frac{18}{9} \times \frac{16}{13} \times \frac{6}{9} = \frac{64}{39}$
Hence $64 : 39$

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Similar questions

Prove that:
(i) $\frac{1}{3 + \sqrt{7}} + \frac{1}{\sqrt{7} + \sqrt{5}} + \frac{1}{\sqrt{5} + \sqrt{3}} + \frac{1}{\sqrt{3} + 1} = 1$
(ii) $\frac{1}{1 + \sqrt{2}} + \frac{1}{\sqrt{2} + \sqrt{3}} + \frac{1}{\sqrt{3} + \sqrt{4}} + \frac{1}{\sqrt{4} + \sqrt{5}} + \frac{1}{\sqrt{5} + \sqrt{6}} + \frac{1}{\sqrt{6} + \sqrt{7}} + \frac{1}{\sqrt{7} + \sqrt{8}} + \frac{1}{\sqrt{8} + \sqrt{9}} = 2$

Q. A sample of 15 data is as follows 17, 18, 17, 17, 13, 18, 5, 5, 6, 7, 8, 9, 20, 17, 3. The mode of the data is

Q. Arrange the following ratios in ascending order:

(i) (5 : 6), (8 : 9), (11 : 18)
(ii) (11 : 14), (17 : 21), (5 : 7) and (2 : 3)

Q. Compare the fractions and put an appropriate sign

\frac{6}{7} . . . . . . . . \frac{8}{7}

ii)

\frac{5}{8} . . . . . . . . \frac{3}{8}

iii)

\frac{6}{13} . . . . . . . . . \frac{6}{17}

iv)

\frac{5}{22} . . . . . . . . . \frac{3}{22}

\frac{9}{47} . . . . . . . . . \frac{9}{42}

Re-arrange suitably and find the sum in each of the following :

(i) $\frac{11}{12} + \frac{- 17}{3} + \frac{11}{2} + \frac{- 25}{2}$

(ii) $\frac{- 6}{7} + \frac{- 5}{6} + \frac{- 4}{9} + \frac{- 15}{7}$

(iii) $\frac{3}{5} + \frac{7}{3} + \frac{9}{5} + \frac{- 13}{15} + \frac{- 7}{3}$

(iv) $\frac{4}{13} + \frac{- 5}{8} + \frac{- 8}{13} + \frac{9}{13}$

(v) $\frac{2}{3} + \frac{- 4}{5} + \frac{1}{3} + \frac{2}{5}$

(vi) $\frac{1}{8} + \frac{5}{12} + \frac{2}{7} + \frac{7}{12} + \frac{9}{7} + \frac{- 5}{16}$

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Find the compounded ratio of 18:9,16:13 and 6:9

The correct option is D 64:39By the defination of compound ratio 18:9,16:13 and 6:9 can be expressed as189×1613×69=6439Hence 64:39

Find the compounded ratio of $18 : 9, 16 : 13$ and $6 : 9$

The correct option is D $64 : 39$
By the defination of compound ratio $18 : 9, 16 : 13$ and $6 : 9$ can be expressed as
$\frac{18}{9} \times \frac{16}{13} \times \frac{6}{9} = \frac{64}{39}$
Hence $64 : 39$