$a$ and $b$ are in ............ proportion
$a$ $3$ $7$ $10$ $11$
$b$ $9$ $21$ $30$ $33$

direct

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indirect

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both

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none

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Solution

The correct option is A direct
$\frac{a}{b} = \frac{3}{9} = \frac{7}{21} = \frac{10}{30} = \frac{11}{33} = \frac{1}{3} = k$
$∴ a$ and $b$ are in direct proportion.

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a and b are in ............ proportiona371011b9213033

The correct option is A directab=39=721=1030=1133=13=k∴a and b are in direct proportion.

$a$ and $b$ are in ............ proportion
$a$ $3$ $7$ $10$ $11$
$b$ $9$ $21$ $30$ $33$

The correct option is A direct
$\frac{a}{b} = \frac{3}{9} = \frac{7}{21} = \frac{10}{30} = \frac{11}{33} = \frac{1}{3} = k$
$∴ a$ and $b$ are in direct proportion.