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10 Mar 2025, 08:50
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Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
(N/A)
Question Stats:
60% (00:24) correct
40% (00:49) wrong based on 5 sessions
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If 120% of \(a\) is equal to 80% of \(b\), which of the following is equal to \(a + b?\)
A. 1.5a
B. 2a
C. 2.5a
D. 3a
E. 5a
A. 1.5a
B. 2a
C. 2.5a
D. 3a
E. 5a
10 Mar 2025, 11:08
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If 120% of a is equal to 80% of b-
I. Determining relationship b/w a & b, it can be simplified as-
3 of a = 2 of b
3a =2b
II. Now the options are expressed in the form of a, so we will convert b into a-
b=3a/2
Therefore, a + b = a + 3a/2, which is equal to 5a/2 i.e 2.5a
I. Determining relationship b/w a & b, it can be simplified as-
3 of a = 2 of b
3a =2b
II. Now the options are expressed in the form of a, so we will convert b into a-
b=3a/2
Therefore, a + b = a + 3a/2, which is equal to 5a/2 i.e 2.5a
12 Mar 2025, 12:42
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OE
Since 120% of 80 = 80% of 120, let a = 80 and b = 120. Then a + b = 200, and 200 ÷ 80 = 2.5.
Answer: C
Since 120% of 80 = 80% of 120, let a = 80 and b = 120. Then a + b = 200, and 200 ÷ 80 = 2.5.
Answer: C
