Question

80% of a number is x.
What is 40% of that same number?

Answer 1

Answer:

Step-by-step explanation:

ntroduction. Percent, p%

'Percent (%)' means 'out of one hundred':

p% = p 'out of one hundred',

p% is read p 'percent',

p% = p/100 = p ÷ 100

80% = 80/100 = 80 ÷ 100 = 0.8

100% = 100/100 = 100 ÷ 100 = 1

Percentage of 80% of what number = 40?

80% of what number = 40 is equivalent to:

80% × ? = 40

80% × ? = 40

? =

40 ÷ 80% =

40 ÷ (80 ÷ 100) =

(100 × 40) ÷ 80 =

4,000 ÷ 80 =

50

Answer 2

X/2 =0.5x

40% is half of 80%. So the answer should be half of x.