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11 Nov 2020, 10:00
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B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
96% (01:06) correct
4%
(01:11)
wrong
based on 235
sessions
History
Date
Time
Result
Not Attempted Yet
Jiang drove away from Marksville at a constant speed of 64 miles per hour. How many miles was Jiang from Marksville after 2 hours and 15 minutes of driving?
(A) 128
(B) 144
(C) 150
(D) 156
(e) 176
(A) 128
(B) 144
(C) 150
(D) 156
(e) 176
yashikaaggarwal
Senior Moderator - Masters Forum
Joined: 19 Jan 2020
Last visit: 10 Aug 2026
Posts: 3,095
Given Kudos: 1,510
Location: India
Schools: Cranfield (A) Warwick MiM "23 (M)
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WE:Analyst (Internet and New Media)
11 Nov 2020, 11:43
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Jiang Speed per Hour = 64 Miles
64 Miles in 1 hour
64/60 Miles in 1 minute
1.0666 Miles/ minute
2 hours and 15 minutes = 120+15 = 135 minutes
Total Miles traveled by Jiang in 2 hours and 15 minutes = 135*1.066 miles
=> 144 Miles
If don't want to calculate:
Miles traveled in 1 hour = 64 miles
2 hours and 15 minutes = 2.25 hours (15 minutes is 1/4 of an hour)
Miles traveled in 2.25 hours = 64*2.25 =144 Miles
Answer is B
64 Miles in 1 hour
64/60 Miles in 1 minute
1.0666 Miles/ minute
2 hours and 15 minutes = 120+15 = 135 minutes
Total Miles traveled by Jiang in 2 hours and 15 minutes = 135*1.066 miles
=> 144 Miles
If don't want to calculate:
Miles traveled in 1 hour = 64 miles
2 hours and 15 minutes = 2.25 hours (15 minutes is 1/4 of an hour)
Miles traveled in 2.25 hours = 64*2.25 =144 Miles
Answer is B
21 Mar 2021, 15:20
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Bookmarks
Bunuel
Emphasising the units used
Speed=\(\frac{64 miles}{hour}\)
Time= 2 hours + 15 minutes=2 hours + 1/4 hour=\(\frac{9}{4}\) hours
Distance=Speed·Time=\(\frac{64 miles}{hour}·\frac{9 hour}{4}=\frac{64·miles·9·hour}{hour·4}=\frac{64·miles·9}{4}=144 miles\)
