Question

80% of a number is 500 more than 2/5​

Answer 1

Answer:

25 is the correct ans

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Answer 2

Answer:

The number is 1250

Step-by-step explanation:

Here we should take the number as 'x'

80% of the number means:

80x/100

Which can also be written as

8x/10

Then we have to write the expression two that is:

500+2x/5

Which can also be written as

(2500+2x)/5

So the equation now is:

=> 8x/10 = (2500 + 2x)/5

=> 5*8x = 10(2500 + 2x)         (cross multiplication)

=> 40x = 25000 + 20x

=> 40x - 20x = 25000

=> 20x = 25000

=> x=25000/20

=> x=1250