A person recorded the speed (in km/hr) of 10 motorists as 48, 52, 57, 55, 45, 39, 61, 49, 51 and 43. The average speed of the motorists is

57 km/hr

No worries! We‘ve got your back. Try BYJU‘S free classes today!

50 km/hr

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

55 km/hr

No worries! We‘ve got your back. Try BYJU‘S free classes today!

54 km/hr

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B
50 km/hr

The speeds are 48, 52, 57, 55, 45, 39, 61, 49, 51 and 43 (in km/hr)
Sum of the speeds
= 48 + 52 + 57 + 55 + 45 + 39 + 61 + 49 + 51 + 43 = 500
Number of speeds taken into account = 10
$∴$ Average = $\frac{500}{10}$ = 50 km/hr

Suggest Corrections

Similar questions

A person recorded the speed (in km/hr) of 10 motorists as 48, 52, 57, 55, 45, 39, 61, 49, 51 and 43. The average speed of the motorists is:

A person recorded the speed (in km/hr) of 10 motorists as 48, 52, 57, 55, 45, 39, 61, 49, 51 and 43. The average speed of the motorists is

Join BYJU'S Learning Program