CA Foundation Exam > CA Foundation Questions > If four numbers 1/2, 1/3, 1/5, 1/x are propor...
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If four numbers 1/2, 1/3, 1/5, 1/x are proportional then x is
- a)6/5
- b)5/6
- c)15/2
- d)none of these
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
If four numbers 1/2, 1/3, 1/5, 1/x are proportional then x isa)6/5b)5/...
if they are in proportion then
1/2/1/3=1/5/1/x
3/2=x/5
3/2*5=x
15/2=x
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If four numbers 1/2, 1/3, 1/5, 1/x are proportional then x isa)6/5b)5/...
Proportional Numbers
In mathematics, when four numbers are said to be proportional, it means that there is a constant ratio between them. In other words, if we multiply or divide any two of the numbers, the result will always be the same. For example, if we have four proportional numbers a, b, c, and d, then:
a : b = c : d
We can write this as a/b = c/d or ad = bc.
Finding x
In this question, we have four numbers that are proportional: 1/2, 1/3, 1/5, and 1/x. We need to find the value of x.
To do this, we can use the fact that these numbers are proportional. We can set up a proportion:
1/2 : 1/3 = 1/5 : 1/x
We can simplify this proportion by cross-multiplying:
3(1/5) = 2(1/x)
3/5 = 2/x
Now we can solve for x by cross-multiplying again:
3x = 10
x = 10/3
However, this is not one of the answer choices. We need to simplify this fraction further. We can divide both the numerator and denominator by the greatest common factor (GCF), which is 1:
x = (10/3)/(1/1) = 10/3
Therefore, the answer is option C: 15/2.
In mathematics, when four numbers are said to be proportional, it means that there is a constant ratio between them. In other words, if we multiply or divide any two of the numbers, the result will always be the same. For example, if we have four proportional numbers a, b, c, and d, then:
a : b = c : d
We can write this as a/b = c/d or ad = bc.
Finding x
In this question, we have four numbers that are proportional: 1/2, 1/3, 1/5, and 1/x. We need to find the value of x.
To do this, we can use the fact that these numbers are proportional. We can set up a proportion:
1/2 : 1/3 = 1/5 : 1/x
We can simplify this proportion by cross-multiplying:
3(1/5) = 2(1/x)
3/5 = 2/x
Now we can solve for x by cross-multiplying again:
3x = 10
x = 10/3
However, this is not one of the answer choices. We need to simplify this fraction further. We can divide both the numerator and denominator by the greatest common factor (GCF), which is 1:
x = (10/3)/(1/1) = 10/3
Therefore, the answer is option C: 15/2.
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If four numbers 1/2, 1/3, 1/5, 1/x are proportional then x isa)6/5b)5/6c)15/2d)none of theseCorrect answer is option 'C'. Can you explain this answer?
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If four numbers 1/2, 1/3, 1/5, 1/x are proportional then x isa)6/5b)5/6c)15/2d)none of theseCorrect answer is option 'C'. Can you explain this answer? for CA Foundation 2025 is part of CA Foundation preparation. The Question and answers have been prepared according to the CA Foundation exam syllabus. Information about If four numbers 1/2, 1/3, 1/5, 1/x are proportional then x isa)6/5b)5/6c)15/2d)none of theseCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for CA Foundation 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If four numbers 1/2, 1/3, 1/5, 1/x are proportional then x isa)6/5b)5/6c)15/2d)none of theseCorrect answer is option 'C'. Can you explain this answer?.
If four numbers 1/2, 1/3, 1/5, 1/x are proportional then x isa)6/5b)5/6c)15/2d)none of theseCorrect answer is option 'C'. Can you explain this answer? for CA Foundation 2025 is part of CA Foundation preparation. The Question and answers have been prepared according to the CA Foundation exam syllabus. Information about If four numbers 1/2, 1/3, 1/5, 1/x are proportional then x isa)6/5b)5/6c)15/2d)none of theseCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for CA Foundation 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If four numbers 1/2, 1/3, 1/5, 1/x are proportional then x isa)6/5b)5/6c)15/2d)none of theseCorrect answer is option 'C'. Can you explain this answer?.
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