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LCM and HCF Practice Test 3
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© examsnet.com
Question : 7
Total: 40
The LCM of two numbers is 14 times that of the HCF. The sum of LCM and HCF is 1,170. If one number is 156, then the other number will be:
516
526
546
496
486
Validate
Solution:
Let the HCF = x
then LCM = 14 x
x + 14x = 1,170
x
=
1
,
170
15
x = 78
HCF = 78 and LCM = 78 × 14 = 1,092
156 × other number = 78 × 1,092
Other number
=
78
×
1
,
092
156
=
546
© examsnet.com
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