Question

How did the temperature change if: at first it increased by 5 % and then increased by 20%

Answer 1

Answer: The temperature changed by 26%

Explanation:

5%+t= 1.05t

1.05t +20%= 1.05t

1.05t×1.2= 1.26t

t + 26%= percent change

Answer 2

26% increase

Explanation:

Initial temperature= t

5% increase= t+ 5%= 1.05t

20% increase= 1.05t +20%= 1.05t*1.2= 1.26t

1.26 t= t + 26%

So temperature increased by 26%