Question

Raymond took a science test that had a total of 20 questions. If he earned an 80% on the test, how many questions did Raymond answer correctly?

Answer 1

Answer:

Let's divide the % into two parts I.e,

80%=50%+(3×10%)

Now, 50% of the number 20 should be calculated

Just divide the number by 2 to get 50% of any number..

20÷2=10

10% of 20 :

Place the decimal point after the units place of a number to get 10% I.e

2.0

Now 10 +(3×2)=10+6=16

80% of 20 is 16.

Answer 2

20×80%

=20×80/100

= 20×4/5

=80/5=16

Therefore, Raymond answered 16 questions correctly.

Hope this helps you

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