The total production during the months of April, May and June of the three items A, B and C are in the ratio:

7 : 5 : 7

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7 : 4 : 4.5

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7 : 4.5 : 4

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4.5 : 6 : 5

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Solution

The correct option is B $7 : 4 : 4.5$
To calculate the ratio we need to simply sum up the productions as
$150 + 250 + 300 : 100 + 150 + 150 : 200 + 200 + 50$
$= 700 : 400 : 450$
$= 14 : 8 : 9$
$= 7 : 4 : 4.5$

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Similar questions

The Heights of $29$ children are given in the table below :

$\begin{matrix} Heights(in ft.) & No. of children 2.5 - 3 & 5 3 - 3.5 & 6 3.5 - 4 & 7 4 - 4.5 & 9 4.5 - 5 & 2 \end{matrix}$

What is the median height of the children?

\begin{matrix} M o n t h s & R a t i o J u l y & 8 : 7 A u g u s t & 4 : 5 S e p t e m b e r & 3 : 2 O c t o b e r & 7 : 5 N o v e m b e r & 7 : 8 D e c e m b e r & 7 : 9 \end{matrix}

1, 2, 3, 3, x, 5, 5, 7, 7, 9

Find the perimeters of the rectangles whose lengths and breadths are given below:
(i) 7 cm, 5 cm
(ii) 5 cm, 4 cm
(iii) 7.5 cm, 4.5 cm

5 : 7 : 8

14

8

7

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