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1.
Algorithm, Formulas, Examples added
on 20.07.18
2.
Simplex method Algorithm and examples
on 08.07.18
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Percentage
1. A number is 20 % of 80 .
2. 42 is 3 % of some number.
3. What percent of 65 is 130 .
4. A's annual income is increased/decreased from Rs 60000 to Rs 75000 . Find the percentage of increase in A's income.
5. In a school of 225 boys, 15 were absent then what percent were present ?
6. A earns 25 % more than B. By what percent does B earn less then A.
7. 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 reduc ...
8. The price of tea has gone up by 20 %. By how much percent should its consumption be reduced so as not to increase the expe ...
9. Find the selling price of an item, of which the printed price is Rs 25000 if the successive discounts given are 10 %, 8 ...
10. The successive discount of 10 % and 5 % are given on the purchased Computer. If the final price of the Computer is Rs 1026 ...
Problem 5 of 10
5. In a school of
boys,
were absent then what percent were present ?
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Percentage
5. In a school of 225 boys, 15 were absent then what percent were present ?
In a school of `225` boys, `15` were absent
`:. 225 - 15 = 210` were present
`:.` present % = `210 / 225 × 100 = 93.3333` %
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