Question

one third of a number when decreased by 2 = 12 of the number increased by 8 find the number
​

Answer 1

Step-by-step explanation:

Find the number.

Solution

Let number be x

x

3

−

2

=

x

5

+

8

x3−2=x5+8

x

3

−

x

5

=

10

x3−x5=10

5

x

−

3

x

15

=

10

5x−3x15=10

2

x

=

15

×

10

2x=15×10

x

=

15

×

5

=

75

x=15×5=75

∴

∴Number is

75

75

Answer 2

Answer:

The answer of the question is 20