Question

If L.C.M of 8 and 10 is 10y, then the value of y is​

Answer 1

4

Step-by-step explanation:

8 = 2×2×2

10 = 2× 5

lcm = 2×2×2×5 = 40

according to question

10y = 40

y = 40/10

y = 4

Answer 2

Solution :-

finding prime factors of 8 and 10 we get,

→ 8 = 2 * 2 * 2

→ 10 = 2 * 5

So,

→ LCM = 2 * 2 * 2 * 5 = 40 .

then, LCM of 8 and 10 is 40 .

A/q,

→ 10y = 40

dividing both sides by 10,

→ y = 4 (Ans.)

Hence, value of y is equal to 4 .

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