Question

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

Answer 1

Answer:

$355 + \frac{12}{100 } \times 355 \\ = 397.6$

Answer 2

Answer:

397.60

Step-by-step 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