Selina solutions

Selina solutions

Grade 6

Percent (Percentage) | Revision Exercise

Question 11

Q11) The original price of an article is ₹ 640. Find its new price when its price is :

(i) increased by 30%

(ii) decreased by 20%

Solution:

Original price of an article = Rs. 640

(i) Increase in price = 30%

By increasing 30% , the new price will be = Rs.640\times\frac{(100+30)}{100}

=640\times\frac{130}{100}=Rs.832

(ii) Decrease in price = 20%

Decreasing 20% the new price will be

=640\times\frac{(100-20)}{100}

=640\times\frac{80}{100}=Rs.512

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Question 11

Q11) The original price of an article is ₹ 640. Find its new price when its price is :

(i) increased by 30%

(ii) decreased by 20%

Solution:

Original price of an article = Rs. 640

(i) Increase in price = 30%

By increasing 30% , the new price will be = Rs.640\times\frac{(100+30)}{100}

=640\times\frac{130}{100}=Rs.832

(ii) Decrease in price = 20%

Decreasing 20% the new price will be

=640\times\frac{(100-20)}{100}

=640\times\frac{80}{100}=Rs.512

Still have questions? Our expert teachers can help you out

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subject-cta
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