Ratio of 2 numbers is 3:4 their L C M is 180 the first number is
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The first number of two is 45.
1) The ratio of given two numbers is 3:4.
2) Let the numbers be 3x and 4x.
3) The factors of 3x are 3 and x .
The factors of 4x are 2,2 and x
4) The LCM of 3x and 4x would be 12x
5) But the given LCM of numbers is 180.
6) Equating both, 12x = 180
x = 15.
7) Hence, the numbers are 3*15 = 45 and 4*15 = 60
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