Question

4. A number when added to its half gives 72. Find the number.​

Answer 1

Answer:

Let the number be x.

According to the given condition,

x+

2

1

×x=72

⟹x+

2

x

=72

⟹

2

2x+x

=72

⟹

2

3x

=72

⟹x=72×

3

2

[Oncross−multiplication]

⟹x=48

Hence, the required number is 48.

Answer 2

Answer:

Let the number be x and its half be x/2.

The equation will be, x+x/2=72

2x+x/2 =72

2x+x=72×2

3x=144

x= 144/3

x=48

Let us verify

48+ 48/2=72

48+24=72

72=72.