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Question

Number of oranges Cost in rupees
2 8
6 p
q 84
Find the numerical value of p and q.

A
p = 24q = 21
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B
p = 21q = 24
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C
p = 12q = 17
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D
p = 24q = 20
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Solution

The correct option is A p = 24q = 21
Given,
Cost of 2 oranges is ₹8.

We know that more the number of oranges, more the cost.

So, Number of oranges(x)Cost(y)
x1y1 = x2y2

Given,
x1 = 2 oranges
y1 = 8
x2 = 6 oranges
and y2 = p = cost of 6 oranges

y2 = x2 × y1x1

p = 6 × 82 = 24

Again,
x1 = 2 oranges
y1 = 8
y2 = 84
and x2 = q = no. of oranges

x2 = x1 × y2y1

q = 2 × 848 = 21 oranges

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