EASY
8th Tamil Nadu Board
IMPORTANT
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Loss or gain percentage is always calculated on the .

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Important Questions on Life Mathematics

MEDIUM
8th Tamil Nadu Board
IMPORTANT
Standard Eight Mathematics>Chapter 4 - Life Mathematics>Exercise 4.2>Q 1
A mobile phone is sold for ₹8400 at a gain of 20%. The cost price of the mobile phone is ₹_____ .
MEDIUM
8th Tamil Nadu Board
IMPORTANT
Standard Eight Mathematics>Chapter 4 - Life Mathematics>Exercise 4.2>Q 1
An article is sold for ₹555 at a loss of 712%. The cost price of the article is ₹_____ .
MEDIUM
8th Tamil Nadu Board
IMPORTANT
Standard Eight Mathematics>Chapter 4 - Life Mathematics>Exercise 4.2>Q 1
The marked price of a mixer grinder is ₹4500, which is sold for ₹4140 after discount. The rate of discount is _____%.
MEDIUM
8th Tamil Nadu Board
IMPORTANT
Standard Eight Mathematics>Chapter 4 - Life Mathematics>Exercise 4.2>Q 1
The total bill amount of a shirt costing ₹575 and a T-shirt costing ₹325 with GST of 5% is ₹_____.
MEDIUM
8th Tamil Nadu Board
IMPORTANT
Standard Eight Mathematics>Chapter 4 - Life Mathematics>Exercise 4.2>Q 2
Selling an article for ₹820 causes 10% loss on the selling price. If the cost price is₹k, find k.  (to two decimal places).
MEDIUM
8th Tamil Nadu Board
IMPORTANT
Standard Eight Mathematics>Chapter 4 - Life Mathematics>Exercise 4.2>Q 3
The profit earned on selling an article for ₹810 is the same as loss on selling it for ₹530. If the cost price is₹k, find k. 
MEDIUM
8th Tamil Nadu Board
IMPORTANT
Standard Eight Mathematics>Chapter 4 - Life Mathematics>Exercise 4.2>Q 4
If the selling price of 10 rulers is the same as the cost price of 15 rulers, then find the gain percentage.
MEDIUM
8th Tamil Nadu Board
IMPORTANT
Standard Eight Mathematics>Chapter 4 - Life Mathematics>Exercise 4.2>Q 5
Some articles are bought at 2 for ₹15 and sold at 3 for ₹ 25 . Find the gain percentage.