Chris and Goffy ran from Newton to Boston at 15 km/h and 12 km/h respectively. They both started from Newton at 10:00 a.m. If Goffy reached Boston at 10:30 a.m., at what time did Chris reach Boston ?

Question

contestada

Respuesta :

sajjaranjit123 sajjaranjit123 · Answer 1 · 2018-10-15T21:50:35+02:00

The Answer is 10:24 am because...

Chris=15km per hour

Goffy=12km per hour

So Goffy took 30 minutes Boston=6km from Newton. So Chris took 24 minutes and he got to Boston at 10:24 am

Hope this Helps you! :)

Answer Link

RenatoMattice RenatoMattice · Answer 2 · 2018-11-15T08:28:37+01:00

Answer: Chris reached Boston at 10:24 a.m.

Explanation:

Since we have given that

Speed at which Chris ran from Newton to Boston = 15 km/h

Speed at which Goffy ran from Newton to Boston = 12 km/h

Time at which both started = 10:00 a.m.

Time at which Goffy reached Boston = 10:30 a.m.

That means Goffy takes half an hour to reach Boston,

so, Distance between Newton and Boston is given by

[tex]Speed \times Time\\\\=12\times \frac{1}{2}=6 \ km[/tex]

So, Time taken by Chris to ran from Newton and Boston is given by

[tex]Time=\frac{Distance}{Speed}=\frac{6}{15}=\frac{2}{5}\times 60\ minutes=24\ minutes\\[/tex]

So, Chris reached Boston at 10:24 a.m.