Question

If a boy can walk 5 km in 2 hours, how long
will he take to walk .
a. 7.5 km
b. 0.25 km at this speed.​

Answer 1

Answer:

3 Hrs

Step-by-step explanation:

3×2.5 that is 7.5 this is the right answer

Answer 2

Answer:

a = 3 hours

b =0.025m/s²

Step-by-step explanation:

Boy walk in 1 hour =

$a) \frac{5}{2} = 2.5km \\ in \: 1hour \: = 2.5km \\ 7.5km \: in \: hours = \frac{7.5}{2.5} \\ = 3hours \\ b)in \: one \: hour = 2.5km \\ 0.25km \: in \: = \frac{0.25}{2.5} \\ = \frac{1}{10} hours \\ speed \: = \frac{distance}{time} \\ \frac{0.25 \times 1}{10} = 0.025 \: ms^{2}$