Two numbers are in the ratio 3 : 5. If their L.C.M. is 75. what is sum of the numbers?
(A) 25
(B) 45
(C) 40
(D) 50
Answer: (C)
Explanation: 1st number = 3x
2nd number =5x
LCM of 3x and 5x is 15x
=> 15x = 75
=> x = 5
sum = 15+25 =40
Two numbers are in the ratio 3 : 5. If their L.C.M. is 75. what is sum of the numbers?
(A) 25
(B) 45
(C) 40
(D) 50
Answer: (C)
Explanation: 1st number = 3x
2nd number =5x
LCM of 3x and 5x is 15x
=> 15x = 75
=> x = 5
sum = 15+25 =40