Question

a boy travels for x hours at 5km/h and for y hours at 10km/h. he travels 35km altogether and his average speed is 7km/h. find x and y​

Answer 1

Answer:

x=3 hours and y=2 hours

Step-by-step explanation:

Let asssume boy travel at 5km/h for 3 hours

So,3×5=15 km

Let assume boy travel at 10 km/h for 2 hours

So,2×10=20

So addition of both hours =3+2=7

Now,Speed =D/T

=35/5

Speed=7km/h. (given)

So this is true ans