The L.C.M. of two numbers is 4800 and their G.C.M. is 160. If one of the…
2025
The L.C.M. of two numbers is 4800 and their G.C.M. is 160. If one of the numbers is 480, then the other number is
- A.
1200
- B.
1400
- C.
1600
- D.
1800
Attempted by 38 students.
Show answer & explanation
Correct answer: C
To find the missing number, you can use the fundamental property relating the Greatest Common Measure (G.C.M.), also known as the Greatest Common Divisor (G.C.D.), and the Least Common Multiple (L.C.M.) of two numbers.
The Property
For any two numbers, the product of the numbers is equal to the product of their G.C.M. and L.C.M.:
First Number * Second Number = G.C.M. * L.C.M.
Step-by-Step Calculation
Identify the given values:
L.C.M. = 4800
G.C.M. = 160
First Number = 480
Second Number = ? (Let's call it x)
Set up the equation:
480 * x = 160 * 4800
Solve for x:
x = (160 * 4800) / 480
Simplifying the fraction (4800 / 480 = 10):
x = 160 * 10
x = 1600