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Question

Q. 4 numbers are in the ratio 2:3:5:7 and their average is 51.Find the largest number among them.

Q. 4 संख्याएँ 2:3:5:7 के अनुपात में हैं और उनका औसत 51 है।उनमें से सबसे बड़ी संख्या ज्ञात करें।


A
60
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B
84
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C
72
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D
96
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Solution

The correct option is B 84

Let the numbers be 2x,3x,5x and 7x

Average =SumNumber=2x+3x+5x+7x4=51i.e.,17x4=51

So x=3×4=12

The largest number =12×7=84

माना की संख्याएं 2x,3x,5x और 7x हैं।

औसत = योग / संख्या =2x+3x+5x+7x4=51i.e.,17x4=51

अतः x=3×4=12

सबसे बड़ी संख्या =12×7=84


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