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11. The LCM of the two numbers is 420. Which of the following CANNOT be the HCF of the two
numbers?
(a) 80
(b) 60
By Alaia

11. The LCM of the two numbers is 420. Which of the following CANNOT be the HCF of the two
numbers?
(a) 80
(b) 60
(© 210
(d) 70​

About the author
Alaia

तरुण की आयु एक पूर्णांक संख्या का घन है. 2 वर्ष पूर्व यह एक अन्य पूर्णाक का वर्ग था. तरुण को कितने व्रत प्रतीक्षा करनी होगी. जब उस

A card is drawn random at a pack of 52 cards

find the p(E) that the eard drawn is
a black King
a heart​

2 thoughts on “11. The LCM of the two numbers is 420. Which of the following CANNOT be the HCF of the two<br />numbers?<br />(a) 80<br />(b) 60<b”

  1. Answer:

    dear your answer is d) 80

    Step-by-step explanation:

    LCM of 420 = 2×2×3*5×7

    hence of HCF = 70 , 60 and 210 is factor of 420 only 80 is not factor of 420 so answer is (d)80

    Reply

  2. Answer:

    THE ANSWER IS 80

    Let the other number be x

    Given:LCM+HCF=600

    ⇒14HCF+HCF=600

    ⇒15HCF=600

    ⇒HCF=40

    ⇒LCM=14×40=560

    Since HCFxLCM=Product of 2 numbers

    =>40×560 = 280×x

    ⇒x=

    280

    40×560

    ⇒x=40×2

    ⇒x=80

    hence the other number is 80.

    Step-by-step explanation:

    HOPE IT HELPS YOU✌✌

    Reply

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