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The G.C.D. of two whole numbers is 5 and their LCM is 60. If one of the number is 20, then the other number would be
A. 13
B. 15
C. 16
D. 25

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The G.C.D. of two whole numbers is 5 and their LCM is 60. If one of the number is 20, then the other number would be
A. 13
B. 15
C. 16
D. 25
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2 Answers

  1. G.c.d=num1 *num2/lcm
    Num1=20
    Gcd=5
    Lcm=60
    5=(20*num2)/60
    Num2= 5*60/20
    Num2=15