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22 Jul 2020, 05:35
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
70% (00:48) correct
30%
(00:38)
wrong
based on 76
sessions
History
Date
Time
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Not Attempted Yet
If a:b = 2:3 and b:c = 5:7, what is c:a?
A. 2:7
B. 3: 7
C. 7:2
D. 10: 21
E. 21:10
A. 2:7
B. 3: 7
C. 7:2
D. 10: 21
E. 21:10
22 Jul 2020, 05:43
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A/B = 2/3
B = 3A/2
B/C = 5/7 putting value of B
3A/C * 1/C = 5/7
A/C = 21:10
Answer E
Posted from my mobile device
B = 3A/2
B/C = 5/7 putting value of B
3A/C * 1/C = 5/7
A/C = 21:10
Answer E
Posted from my mobile device
yashikaaggarwal
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22 Jul 2020, 05:45
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If a:b = 2:3 and b:c = 5:7, what is c:a?
A:B:C
2:3:_ * multiply by 5
_:5:7 * multiply by 3
10:15:21
A:C = 10:21
C:A = 21:10
Answer is E
A:B:C
2:3:_ * multiply by 5
_:5:7 * multiply by 3
10:15:21
A:C = 10:21
C:A = 21:10
Answer is E
