Question

When 40 is subtracted from 50℅ of number the result is 50℅ of 500 find one tenth of number

Answer 1

Let the no. Be X

50x/100-40=50/100*500

50x-4000/100=50*5

50X -4000/100=250

50X -4000=25000

50X=25000+4000

X=29000/50

X=580

⬆answer

Answer 2

Concept

A portion's proportion to a whole is measured by a percentage, which is frequently represented in terms of how many of something there are for every 100.

Given

Given that 40 is subtracted from 50℅ of number the result is 50℅ of 500

Find

We need to find one tenth of number

Solution

Let the number be x

So the equation formed is

50*x/100-40=50/100*500

∴50*x-4000/100=50*5

∴50*x -4000/100=250

∴50*x -4000=25000

∴50*x=25000+4000

∴x=29000/50

∴x=580

Hence the number is 580

But we have asked to find the one tenth of number

∴ 1 /10 *580 =58

Hence the one-tenth of the number is 58

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