Question

If a = 2×2 × 3*x, b = 2×2 × 3 × 5, c = 2×2 × 3 × 7, and LCM (a, b, c) = 3780, then find

the value of x.

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Answer 1

Answer:

x = 9

Step-by-step explanation:

(a, b, c) = 3780

2x2x3 x X , 2x2x3x5 , 2x2x3x7 = 3780

12x X, 60,84 = 3780

left X and then LCM of 12,60,84 is 420.

Now, multiply 420 with X,

420*X = 3780

then, x = 3780/420

X = 9

hope it help you

Answer 2

Answer:

x=9

Step-by-step explanation:

LCM (a,b,c) = 2² × 3^x × 5 × 7

3780 = 140 × 3^x

x = 3780

______

140 × 3

x = 9