Question

4. At 47 km/h, Mark can reach grocery store in 60 minutes. At what speed should he drive in his tricycle to reach grocery store 15 minutes earlier? answer and solution.​

JOKES=REPORT
Good answer=Brainliest​

Answer 1

we know ,

.

speed =47km/hr

time = 60 minutes

$speed = \frac{distance}{time}$

$distance = speed \: \times time$

distance = 65km/hr × 60/60hr

distance = 65km

To reach grocery store 15 minutes earlier

i.e

$60 - 15 = 45 \: minutes$

time = 45/60=0.75hr

$speed \: = \frac{distance}{time}$

$\huge \color{green} \: speed \: = \frac{65}{0.75}$

$\huge \color{pink} \: speed = 86.6 \: or \: 86.7$

Hope it helps mark me brainlist

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