Funadvice Logo
+ List
More General Knowledge Questions

Master of math

A man travels a distance of 24 km at 6 km/hr, another distance of 24 km at 8 km/hr and a third distance of 24 km at 12 km/hr his average speed for the whole journen in km/hour is

Become an Expert →
Answer #1

average speed = total distance/total time…

soo…

24/6 = 4 hr 24/8 = 3 hr 24/12 = 2 hr

Total time = 9 hours Total Distance = 24*3 = 72

72/9 = 8km/hr (which is kinda obvious, if you average the 3 speeds [6+8+12/3] since it’s the same distance, but that’s the proper way to do it)

More Like This
Ask an advisor one-on-one!
Advisor

Bay Area Roofing Masters

Roofing Contractor, Home Improvement, Construction Services

Advisor

Rút Thẻ Tín Dụng VN

Dịch vụ tài chính, Rút tiền mặt thẻ tín dụng, Đáo hạn thẻ tín dụng

Advisor

AMD SOL

Medical Billing Services, Specialty EHR Solutions, Patient Support Services

Advisor

gocustomboxes.co.uk

Custom Packaging, Wholesale Packaging, Printing Services