Question

The odometer of a car-reads the following distances at the given instants. The ratio of average speed of the
car in the first and the second intervals is
Odometer reading
9:45 AM
4404 km
10:16 AM
4449 kn
10 30 AM
4469 km
(2) 8 : 9
(1)
ndations
(3)
9.2
(4): 2:1​

Answer 1

Answer:

9:8

Step-by-step explanation:

Average Speed of $1^{st}$ interval = $\frac{45 km}{30 min}$

                                                   = $\frac{45*60}{30}$ km/h

                                                   = 90 km/h

Average Speed of $2^{nd}$ interval = $\frac{20km}{15min}$

                                                   =  $\frac{20*60}{15}$km/h

                                                    = 80 km/h

Hence, Ratio =  Average Speed of $1^{st}$ interval / Average Speed of $2^{nd}$ interval

                       = $\frac{90}{80}$

                       = $\frac{9}{8}$

                       = 9:8

HOPE YOU UNDERSTOOD !!

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