Intern
Joined: 12 Sep 2023
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Location: India
Abhinav: Shah
Concentration: Accounting, Finance
Refer to the diagram below and answer the questions that follow. Figur
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23 Jan 2024, 00:42
Ans: A. 40 B. ADCA
A. The average speed to the nearest km per hour for the trip from A to C via D
Total Distance/Total Time = Average Speed
265km + 106km / 6 hours 45 mins + 2 hours 40 mins
We are asked to find the nearest, hence we can change 106km to 105km & 2 hours 40 mins to 2 hours 45 mins for easier calculations
265 + 105 / 6.75 + 2.75
370 / 9.5 = 38.9 kmph.
The nearest Speed is 39 kmph, it is not in the options, hence the nearest one will be 40 kmph
B. If a man begins a round trip from location A to A, which route will take the least time?
ABCA: 8.75 + 3.25 + 8.75 = 20 hours 45 mins (for 3 hours 20 mins, turned 20 mins to 15 mins for easier calculations)
ABEA: 8.75 + 3 + 6.75 = 18 hours 30 mins
ADCA: 6.75 + 2.75 + 8.75 = 18 hours 15 mins
ADCBA: 6.75 + 2.75 + 3.25 + 8.75 = 21 Hours 30 Mins