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30 Dec 2019, 02:19
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
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89% (00:40) correct
11%
(01:35)
wrong
based on 56
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When 30 is subtracted from a number, the result is 80 % of the number. Find the number.
A. 150
B. 120
C. 100
D. 80
E. None of these
A. 150
B. 120
C. 100
D. 80
E. None of these
30 Dec 2019, 02:30
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Assume Number be x
\(x - 30 = \frac{80}{100} x\)
We get x= 150
Option A
\(x - 30 = \frac{80}{100} x\)
We get x= 150
Option A
30 Dec 2019, 11:51
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Solution
Given
In this question, we are given that
- • When 30 is subtracted from a number, the result is 80 % of the number
To find
We need to determine
- • The value of the number
Approach and Working out
As a reduction by 30 results in 80% of the number, we can say that 20% of the number is equal to 30.
- • Hence, 20% of the number = 30
Or, the value of the number = 30/0.20 = 150
Thus, option A is the correct answer.
Correct Answer: Option A
