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Question

Q. The sum of three numbers a,b and c is 174. If b:c=9:16 and a:c=1:4 Find out the value of b.

Q. तीन संख्याओं a,b और c का योग 174 है।यदि b:c=9:16 और a:c=1:4, तो b का मान ज्ञात करें।

A

52
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B

45
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C

54
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D

59
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Solution

The correct option is C
54
Given, b:c=9:16 and a:c=1:4
Multiply the ratio a:c with 4 on both the sides.
Thus, a:c=4:16
Now, the ratio a:b:c can be expressed as 4:9:16
Given, a+b+c=174.
Hence, 4x+9x+16x=174.
Solving, x=6
Thus, the value of b=9x=54.

दिया गया है कि, b:c=9:16 और a:c=1:4
अनुपात a:c के दोनों पक्षों को 4 से गुणा करने पर प्राप्त अनुपात, a:c=4:16
अब, अनुपात a:b:c को 4:9:16 के रूप में व्यक्त किया जा सकता है
दिया गया है कि, a+b+c=174
इसलिए, 4x+9x+16x=174
हल करने पर, x=6
इस प्रकार, b का मान =9x=54

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