The LCM of two numbers is 2310 and their HCF is 30. If one of the number is 7×30, find the other number.

(a) 220
(b) 330
(c) 425
(d) 512

Anurag Mishra Professor Asked on 16th May 2016 in Maths.
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1 Answer(s)

Answer: (b) 330 

Solution:-
The LCM of two numbers = 2310 
The HCF of two numbers = 30 
One of the number = 7 x 30 

Formula- 
The product of two numbers = the product of HCF ans LCM. 

Then, 
2310 x 30 = 7 x 30 x other number 
other number = 2310/7
 = 330 

So, the other number will be 330. 

Hence, the correct answer is option (b) 330. 

Anurag Mishra Professor Answered on 18th May 2016.
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