Quantitative Aptitude :: HCF & LCM Problems And Answers

2. Sum of two numbers is 63. Their difference is 1/8 of their sum. their L.C.M is

A. 231 B. 153
C. 351 D. 345
Answer & Explanation

Answer: Option C

Explanation:
Let the numbers be x and y
According to the problem
X + y = 63
x - y  = 1/8 ( x+y)
x-y = 1/8 * 63,  x-y = 9
2x = 72, x= 36 and y = 27
L.C.M of 36 and 27 is  351


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