Question

4.36% of the maximum marks is required to pass a test. A student
declared fail by 39 marks. Find the maximum marks.
8. A fruit-seller had some apples. He sells 40% of them and still ha
8. An ore
of copper?
Es
number of apples he had originally,
In an examination, 72% of the total examinees passed. If the numbe
the total number of examinees.
10. After deducting a commission of 5%, a moped costs 15200. Wh
11. Gunpowder contains 75% of nitre and 10% of sulphur, and the ro
the amount of charcoal in 8 kg of gunpowder.
12. Chalk contains 3% of carbon, 10% of calcium and 12% of oxygen.
of each of these substances in 1 kg of chalk.​

Answer 1

Answer:

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Answer 2

Answer:

Let the x be the maximum marks,

Passing marks for the test =(123+39)=162

Then, 36% of x=162

=x=(162×100)/36

=x=450

∴ the maximum marks is 450.