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18/60(0.1254)
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14 Sep 2021, 05:15
14 Sep 2021, 05:15
Expert Reply
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A
B
C
D
E
Difficulty:
5%
(low)
Question Stats:
86% (01:02) correct
14%
(01:36)
wrong
based on 93
sessions
\(\frac{18}{60}(0.1254)=\)
(A) 0.00522
(B) 0.03135
(C) 0.03762
(D) 0.0418
(E) 0.0627
(A) 0.00522
(B) 0.03135
(C) 0.03762
(D) 0.0418
(E) 0.0627
Re: 18/60(0.1254)
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14 Sep 2021, 05:18
14 Sep 2021, 05:18
Bunuel
\(\frac{18}{60}(0.1254)=\)
(A) 0.00522
(B) 0.03135
(C) 0.03762
(D) 0.0418
(E) 0.0627
(A) 0.00522
(B) 0.03135
(C) 0.03762
(D) 0.0418
(E) 0.0627
\(\frac{18}{60}(0.1254)=\frac{3}{10}(0.1254)=0.03762\)
Hence, OA is (C).
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18/60(0.1254)
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14 Sep 2021, 07:38
14 Sep 2021, 07:38
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Expert Reply
Top Contributor
Bunuel
\(\frac{18}{60}(0.1254)=\)
(A) 0.00522
(B) 0.03135
(C) 0.03762
(D) 0.0418
(E) 0.0627
(A) 0.00522
(B) 0.03135
(C) 0.03762
(D) 0.0418
(E) 0.0627
Given: \(\frac{18}{60}(0.1254)\)
Simplify fraction: \(\frac{3}{10}(0.1254)\)
Rewrite as follows: \(\frac{3 \times 0.1254}{10}\)
No big calculations necessary here
Notice that the product 3 x 0.1254 will end in 2, since 3 x 4 = 12
So, we can eliminate answer choices B, D and E, since they don't end with the digit 2
Since the remaining answer choices, 0.00522 and 0.03762, are significantly spread apart, we can estimate the answer from here.
\(\frac{3 \times 0.1254}{10} ≈ \frac{3 \times 0.13}{10}≈ \frac{0.39}{10}≈0.039\)
The closest remaining answer choice is (C) 0.03762
Answer: C
