Percentage Example-1

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Percentage examples ( Enter your problem )

( Enter your problem )

2. HCF-LCM Word Problem
(Previous method)

4. Profit Loss Discount
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1. Example-1

Problem : 1 / 12 [ Percentage ] Enter your problem 1. What is 20 % of 80 .


Solution:	`20` % of `80 = 20 / 100 × 80 = 16`.

Problem : 2 / 12 [ Percentage ] Enter your problem 2. 42 is 3 % of what.


Solution:	Let `42` is `3` % of X `3 / 100 × X = 42` `=> X = 42 × 100/3` `=> X = 1400` .

Problem : 3 / 12 [ Percentage ] Enter your problem 3. What percent of 65 is 130 .


Solution:	Let X % of `65` is `130` `=> X/100 × 65 = 130` `=> X = (130 × 100 )/65` `=> X = 200` %

Problem : 4 / 12 [ Percentage ] Enter your problem 4. 130 is what percent of 65 .


Solution:	Let X % of `65` is `130` `=> X/100 × 65 = 130` `=> X = (130 × 100 )/65` `=> X = 200` %

Problem : 5 / 12 [ Percentage ] Enter your problem 5. What is the percentage increase/decrease from 20 to 40 ?

Problem : 6 / 12 [ Percentage ] Enter your problem 6. A's annual income is increased/decreased from Rs 60000 to Rs 75000 . Find the percentage of increase in A's income.


Solution:	A's original income = Rs `60000` A's new income = Rs `75000` `=>` Increase = Rs `15000` `=>` Increase % = `("Increase")/"Original Income" × 100 = 15000 / 60000 × 100 = 25` A's income is increased by `25` %

Problem : 7 / 12 [ Percentage ] Enter your problem 7. In a school of 225 boys, 15 were absent then what percent were present ?


Solution:	In a school of `225` boys, `15` were absent `:. 225 - 15 = 210` were present `:.` present % = `210 / 225 × 100 = 93.3333` %

Problem : 8 / 12 [ Percentage ] Enter your problem
8. A earns 25 % more than B. By what percent does B earn less then A.

Solution:

Let A's income = Rs `100`

`:.` B's income = Rs `( 100 + 25 )` = Rs `125`

B's Income Rs	A's Income Rs
125	100
100	?

A's Income = `( 100 × 100 ) / 125 = 80` Rs

`:.` A's income is Rs `20` less than by B's income (Rs `100`)

`:.` A's income is `20` % less than by B's income.

Problem : 9 / 12 [ Percentage ] Enter your problem 9. A reduction of 20 % in the price of basmati rice would enable a man to buy 2 kg of rice more for Rs 250 . Find the reduced price per kg.


Solution:	A reduction of `20` % in the price of basmati rice would enable a man to buy `2` kg of rice more for Rs `250` . `:.` Reduced price of `2` kg rice = `20` % of Rs `250 = 20 / 100 × 250 = 50` `:.` Reduced price of `2` kg rice = Rs `50` `:.` Reduced price of per kg rice = Rs `25`

Problem : 10 / 12 [ Percentage ] Enter your problem
10. The price of tea has gone up by 20 %. By how much percent should its consumption be reduced so as not to increase the expenditure?