Answers

2015-01-31T18:06:35+05:30
Let two numbers be x and y
then atq
x+y=55
x=55-y - - - - - - - - - - 1
now 
HCF×LCM= x×y
5×120=xy
600= 55y -y²
y² -55y+600
y² - 40y-15y +600
y(y-40)-15(y-40)
therefor 
y=40 or y=15
now 
numbers came to be 15 and 40
1/15+1/40=11/120----------------------------------------------ans



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