Math, asked by Bobbyjain, 1 year ago

a student was asked to multiplyb4/5 . by mistake he divided given number by 4/5. his answer was 36 more than the correct answer . what was the given number

Answers

Answered by Suraj2002

x*4/5+36=x/4/5
4x/5+36=5x/4
4x+180=25x/4
16x+720=25x
25x-16x=720
9x=720
x=720/9
x=80

Suraj2002: 36 into 5=180

Bobbyjain: ok

Bobbyjain: thanks

Suraj2002: that is why i took

Suraj2002: mark as brainliest plz

Bobbyjain: ok

Suraj2002: fastly

Bobbyjain: bro what is the meaning of x/4/5

Suraj2002: it means that x is divided by 4/5

Bobbyjain: how it became 4x+180=16x+720

Answered by sanjanaria508

Let the given number be x,

Original answer = 4/5x

Wrong answer = x/1 / 4/5

= x multiplied by 5/4

= 5x/4

So,

5x/4 = 36 + 4x/5

5x/4 - 4x/5 = 36

(25x - 1) / 20 = 36

9x/20 = 36

x = (36 multiplied by 20) / 9

So, x = 80

HOPE IT HELPS :)

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