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The HCF and LCM of two numbers are 13 and 455 respectively. If one of the number lies between 75and 125, then, that number is :

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The HCF and LCM of two numbers are 13 and 455 respectively. If one of the number lies between 75and 125, then, that number is :
1). 78
2). 91
3). 104
4). 117

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2 answers

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Answered by on | Votes 0 |
Its very simple question 91 is the correct answer.

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Answered by on | Votes 0 |
HCF = 13 Let the numbers be 13x and 13y. Where x and y are co-prime. LCM = 13XY 13XY = 455 XY= $\frac{455}{13}$ = 35= $5\times7$ Numbers are 13 × 5 = 65 and 13 × 7 = 91




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