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Aptitude · Q175

Problems On H.C.F And L.C.M

Competitive Exams · Aptitude · question 175

Q175

13, a, b, c are four distinct numbers and the HCF of each pair of numbers (13, a) ; (13, b) ; (13, c) is 13, where a, b, c are each less than 60 and a < b < c. What is the value of a + c b?

13, a, b, c are four distinct numbers and the HCF of each pair of numbers (13, a) ; (13, b) ; (13, c) is 13, where a, b, c are each less than 60 and a < b < c. What is the value of
A.
3.5
B.
2
Answer
C.
5
D.
4.5

Answer: Option B

Solution

Answer: Option B
Solution:
Four distinct numbers 13, a, b, c are given
HCF of (13, a) : (13, b) : (13, c) = 13 and a < b < c
It is clear that
a = 26
b = 39
c = 52