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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 है, तो b का मान ज्ञात कीजिए।


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, b:c=9:16 और a:c=1:4

अनुपात a:c को दोनों पक्षों में 4 से गुणा करने पर।

इस प्रकार, a:c=4:16

अब, अनुपात a:b:c को 4:9:16. के रूप में व्यक्त किया जा सकता है

दिया गया है, a+b+c=174

अतः, 4x+9x+16x=174

हल करने पर, x=6

अत: b का मान =9x=54


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