Question

if the speed of a motorcycle us 40 km per hour.how far will traveling and hour and a quarter?

Answer 1

HI ,

We can find the distance traveled in two methods :

1 ) speed of the motor cycle = s = 40km/ hr

            time  taken traveled = 1 hour and quarter = ( 1 + 1/4 ) hr
 
                                                                             = (4+1 ) /4 hr

                                                                             = 5/4 hr

we know the relation ,

distance = speed x time

              = 40 km /hr x 5/4 hr

              = 10 x 5 km

              = 50 km

distance traveled in 1 hour and a quarter with a speed of 40 km/hr = 50km

Or 

Second method :

In 1 hr motor cycle travels = 40 km-----( 1) 

In 1/2 hr motor cycle travels = 40 / 2 km = 20 km

in a quarter hour  motor cycle travels = 40 /4 km= 10 km-----( 2) 

In 1 hour and a quarter hour motor cycle travels the distance

                                                  = ( 1) + (2 )

                                                  = 40km + 10km
                                               
                                                  = 50km

I hope this helps you.

****
 

Answer 2

Answer:

Step-by-step explanation:

60 mins= 40 km

1 hour and a quarter

Quarter = 1/4 × 60 (1 hour= 60mins)

Here,

Speed= distance/ time

Let the speed travelled in 15 mins be 'x'

x= 40 × 15/ 60

x= 10

So, in 15 minutes distance travelled= 10 km

Total distance travelled in 1 hour= 40 + 10 = 50 km