ExamCompetition Forum Question Papers Ask A Question Mock Test Learn & Earn Sign Up Login Menu



0 vote

The sum of two numbers is 36 and their H.C.F and L.C.M. are 3 and 105 respectively. The sum of the reciprocals of two numbers is

Asked on by | Votes 0 | Views: 421 | Tags: mathematics     | hcf and lcm     | quantitative aptitude     | ssc     | Add Bounty

The sum of two numbers is 36 and their H.C.F and L.C.M. are 3 and 105 respectively. The sum of the reciprocals of two numbers is
1). $\frac{2}{35}$
2). $\frac{3}{25}$
3). $\frac{4}{35}$
4). $\frac{2}{25}$

SSC CGL Books


Share on Facebook      Share on Whatsapp       Share on Twitter




2 answers

2 vote
Answered by on | Votes 2 |
$\frac{3}{25}$

Join Telegram Group




1 vote
Answered by on | Votes 1 |
Let the numbers be 3x and 3y. 3x + 3y = 36 x + y = 12 ... (i) and 3xy = 105 ... (ii) Dividing equation (i) by (ii), we have $\frac{x}{3xy}+\frac{y}{3xy}=\frac{12}{105}$ $\frac{1}{3y}+\frac{1}{3x}=\frac{4}{35}$




Answer This Question

Name:
Email:
Answer :
Sum of (4+5)
Submit: