A shopkeeper gives a discount of $$ 12$ on an article that costs $$ 53$ . If a customer buys 5 such articles, then what is the selling price of 5 articles? (Round off the selling price to the nearest 10's).

$300

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$200

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$400

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$100

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Solution

The correct option is B $200
Say:
$∙$ Estimation is approximating the given value to make the calculation easier.

$∙$ Round off the given numbers to the nearest hundred.

Steps:
$∙$ What is the cost of 1 article?
Ans: $$ 53$

$∙$ What is the estimated value of 53?
Ans: 50 (WB1)

$∙$ What is the discount he gave on each article?
Ans: $$ 12$

$∙$ What is the estimated value of 12?
Ans: 10 (WB1)

$∙$ What is the discounted/selling price of 1 article?
Ans: $$ 50 - $ 10 = $ 40$ (WB2)

$∙$ How many articles does a customer buy?
Ans: 5

$∙$ Which operation do we use to find the cost of 5 articles?
Ans: Multiplication

$∙$ What is the selling price of 5 articles?
Ans: $$ 40 \times 5 = $ 200$ (WB2)

WB1:

WB2:

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Q. A shopkeeper buys an article for Rs.

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. He marks it at

20 %

above the cost price. The selling price, if he sells the article at 10% discount, is:

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A shopkeeper gives a discount of $12 on an article that costs $53. If a customer buys 5 such articles, then what is the selling price of 5 articles? (Round off the selling price to the nearest 10's).

A shopkeeper gives a discount of $$ 12$ on an article that costs $$ 53$ . If a customer buys 5 such articles, then what is the selling price of 5 articles? (Round off the selling price to the nearest 10's).