The cost of 4 apples is Rs 20. The cost of 20 apples is

Rs 4

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Rs 400

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Rs 40

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Rs 100

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Solution

The correct option is D Rs 100
Cost of 4 apples = Rs 20

$∴$ cost of 1 apple = $20 \div 4$ = Rs.5

$∴$ cost of 20 apples = $20 \times 5$ = Rs 100

Answer: D Rs 100

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