- Option : B
- Explanation : Let CP = SP = Rs 100.

CP of 100 pencils = Rs 100

CP of 1 pencil = 100/100 = Rs 1

SP of 60 pencils = Rs 100

SP of 1 pencil = `100/60 = Rs 5/3

Profit = 5/3 – 1 = 2/3

Profit percentage = 2/3/1 × 100 = 66 2/3%

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- Option : B
- Explanation : SP = 480 + 10% of 480 = Rs 528

Let Marked price = M

Now 96% of M = 528, So M = Rs 550

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- Option : A
- Explanation : Old sales price = 500 + 40% of 500 = Rs 700

New marked sales price = 500 + 80% of 500 = Rs 900

Discounted price = 900 – 20% of 900 = Rs 720

Thus new price is higher by Rs 20

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- Option : A
- Explanation : 20% reduction on Rs 600 means benefit of RS 120 to a
customer. That enables customer to buy 2 kg extra
article.

Thus reduced selling price of 2 Kg = Rs 120 and of one Kg = 120/2 = Rs 60

If a value reduces by 20%, it means it should be increased by 25% to reach at original value again.

Thus original price = 60 + 25% of 60 = Rs 75

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