Question

The difference between 31 and a number is 27. Find the number

Answer 1

Answer:

Required number is 4

Step-by-step explanation:

Let the required number be b.

According to the question, difference between 31 and b is 27.

It means :

= > 31 - b = 27

= > 31 - b + b = 27 + b           [ adding b on both sides ]

= > 31 - 27 = 27 - 27 + b            [  subtracting 27 from both sides ]

= > 4 = b

For Verification : -

Difference between 31 and 4 should be 27 : - ]

= > 31 - 4

= > ( 27 + 4 ) - 4

= > 27 + 4 - 4

= > 27

Hence the required number is 4, since the numeric value of b is 4.

Answer 2

For me, 4 is the number