Question

Jenny has finished 20 of the 25 math problems on her homework sheet. Liam has finished the same percent of problems from his homework sheet. His homework contains 40 problems. How many problems has Liam finished?

Answer 1

The number of problems which are finished by Liam from his homework sheet when his homework contains 40 problems is 32.

What is percentage of a number?

Percentage of a number is the part of the whole number which is expressed in the fraction of hundredth. It is represented with "%" symbol.

Jenny has finished 20 of the 25 math problems on her homework sheet. Thus, the total percentage of problems he finished is,

$n=\dfrac{20}{25}\times100\\n=80\%$

Liam has finished the same percent of problems from his homework sheet which is 80%. His homework contains 40 problems. Thus, the number of problems has Liam finished,

$x=\dfrac{80}{100}\times40\\x=32$

Hence, the number of problems which is finished by Liam from his homework sheet when his homework contains 40 problems is 32.

Learn more about the percentage here;

https://brainly.com/question/2085058

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