Question

When a new bridge is a built the average time taken by a bus to travel decreases 40 to 50 minutes what is the time percent decrease for travel between two cities

Answer 1

Answer:

the total time taken by the bus is 40 minutes

but it decreases to 50 minutes

100 percentage = 40 min

then ,

$1min = \frac{1}{40} \times 100$

$1min = 2.5\%$

$50 min- 40 min= 10min$

$10min = 2.5 \% \times 10$

$10min = 25\%$

The bus is 25 percentage minutes late