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16 Jul 2025, 22:00
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
87% (02:07) correct
13%
(03:13)
wrong
based on 93
sessions
History
Date
Time
Result
Not Attempted Yet
Eric, Nick and Archi make contributions to the Society Of Nature Protection in the ratio of 5:3:2.5. If altogether they contribute 5145 Nis, how much more money does Nick contribute than Archi?
A. 128 Nis
B. 212 Nis
C. 234 Nis
D. 245 Nis
E. 288 Nis
A. 128 Nis
B. 212 Nis
C. 234 Nis
D. 245 Nis
E. 288 Nis
17 Jul 2025, 01:40
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Ratios, \(5x:3x:2.5x\)
\(5x+3x+2.5x=10.5x\)
\(Nick-Archi=3x-2.5x=0.5x\)
Nick contributes \(0.5x\) more than Archi
\(10.5x=5145\)
\(x=490\)
\(0.5x=245\)
Answer: D
\(5x+3x+2.5x=10.5x\)
\(Nick-Archi=3x-2.5x=0.5x\)
Nick contributes \(0.5x\) more than Archi
\(10.5x=5145\)
\(x=490\)
\(0.5x=245\)
Answer: D
17 Jul 2025, 02:50
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Let individual contributions for Eric, Nick and Archi be 5x, 3x, 2.5x
Total = 10.5x
Nick's contribution in excess of Archi = (3x-2.5x)/10.5x * 5145 = 5145/21 = 245
Total = 10.5x
Nick's contribution in excess of Archi = (3x-2.5x)/10.5x * 5145 = 5145/21 = 245
Bunuel
