From the table given below, establish a function between a and b.

a = 2 b

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b = 20 a

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a = 40 b

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b = 40 a

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Solution

The correct option is D $b = 40 a$

We have to determine the function.

We know, Number of chocolates (a) x 40 = Cost of chocolates (b)

When, $a = 3, b = 3 \times 40 = ₹ 120$
Similarly, $a = 7, b = 7 \times 40 = ₹ 280$
and, $a = 13, b = 13 \times 40 = ₹ 520$

Hence, the relation is $b = 40 a$

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From the table given below, establish a function between a and b.

The correct option is D b=40a We have to determine the function. We know, Number of chocolates (a) x 40 = Cost of chocolates (b) When, a=3, b=3×40=₹120 Similarly, a=7, b=7×40=₹280 and, a=13, b=13×40=₹520 Hence, the relation is b=40a