the sum of two no. is 55 and the HCF and the LCM of these no. are 5 and 120 respectively. what is sum of reciprocals of the no. ?
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Answered by
1
Answer:
product of numebrs = 5 x 120 = 600 factors = 5 x 5 x 3 x 2 x 2 x 2
sum is = 55
xy = 600
x + y = 55
reciprocal
1/x + 1/y = (x+y)/xy = 55/600 = 11/120
Answered by
3
You get the answer by adding all numbers.
=====================================
100+200+300+400+500+600+700
=1000+500+600+700
=2100+700
=2800
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