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If 3, 8 and15 ,x are in proportion then find the value of x.

  • a)
    15

  • b)
    20

  • c)
    40

  • d)
    30

Correct answer is option 'C'. Can you explain this answer?
Verified Answer
If 3, 8 and15 ,x are in proportion then find the value of x.a)15b)20c)...
3/8=15/x
3x=15x8
x=40
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Most Upvoted Answer
If 3, 8 and15 ,x are in proportion then find the value of x.a)15b)20c)...
Given, 3:8::15:x

To find the value of x, we can use the property of proportionality which states that the product of the means is equal to the product of the extremes.

In other words, 3 * x = 8 * 15

Simplifying further, we get:

3x = 120

x = 40

Therefore, the value of x is 40, which corresponds to option C.
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Community Answer
If 3, 8 and15 ,x are in proportion then find the value of x.a)15b)20c)...
(i)157​=30x​⇒x=157×30​=14

(ii)3x​=1812​⇒x=1812×3​=2

(iii)x30​=2445​⇒x=4530×24​=16

(iv)168​=x25​⇒x=825×16​=50
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If 3, 8 and15 ,x are in proportion then find the value of x.a)15b)20c)40d)30Correct answer is option 'C'. Can you explain this answer?
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