Question

the speed of a train is 80 km/ hr. it is
a) increased to 130 km / hr . find the percentage increase
b) decreased to 65km / hr . find the percentage decrease​

Answer 1

Step-by-step explanation:

$\frac{130 - 80}{80} \%$

$\frac{50}{80} \times 100$

$125 \div 2$

$62.5\%$

$2)$

$\frac{80 - 65}{80} \times 100$

$\frac{15}{80} \times 100$

$75 \div 4\%$

$18.75\%$