Question

find number whose fifth part increade by 30 is equal is fouth part decreade by 30

Answer 1

hi

let the number be x

Find number whose fifth part increade by 30 is equal is fouth part decreade by 30

lets form an euqtaion

1x/5 + 30 = 1x/4 - 30

1x/5 - 1x/4 = -30 -30

4x - 5x/20 = -60

-x/20 = -60

-x = -1200

x = 1200

hope it helps u

:0

Answer 2

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Let the number is x.

A/Q,

⇒ ( x/5 ) + 30 = ( x/4 ) - 30

⇒ ( x/5 ) - ( x/4 ) = -30 - 30

⇒ ( 4x - 5x ) / 20 = -60

⇒ -x = ( - 60 ) × 20

⇒ -x = -1200

∴    x = 1200.

Verification : 

⇒ ( 1200/5 ) + 30 = ( 1200/4 ) - 30

⇒ 240 + 30 = 300 - 30

∴  270 = 270

Verified.


The required number is 1,200.