Question

Using a calculator to increase 355 by 12% equals ??(. )

Answer 1

`355 + (12)/(100 ) * 355 \\ = 397.6`

Answer 2

397.60

Explanation:

Old value Increased by New value

100 12 112

355 12 x

Let the unknown new value be x.

So, we can make an expression like this.

100 ⇒ 112

355 ⇒ x

Use cross multiplication and find the value of x.

100x = 112 × 355

100x = 39760

Divide both sides by 100.

x = 397.60

Therefore,

355 increased by 12% = 397.60