A) 4/35
B) 6/35
C) 5/36
D) 7/36
Correct Answer: A
Solution :
[a] Given \[x+y=36\] ... (i) And HCF and LCM of x and \[y=3\] and 105 i.e. \[xy=3\times 105\] (ii) Now, \[\frac{1}{x}+\frac{1}{y}=\frac{y+x}{xy}=\frac{36}{3\times 105}=\frac{4}{35}\] [from Eqs. (i) and (ii)]You need to login to perform this action.
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