Question

Find the square root of the product of 10 and the sum of the first three common
multiples of 5 and 15.​

Answer 1

Answer:

30

Step-by-step explanation:

first three common multiples of 5 and 15 are 15,30and 45

sum of their product with 10:

15+30+45×10=900

square root of it is 30

Answer 2

The given w is we have to find the square root of product of 10 and sum of the first three common multiples of 5 and 15.

In this question first we have to find the common multiples of 5 and 15.

The multiples of 5 are 10,15,20,25,30,35,40,45,50,55,60

/The multiples of 15 are 15,30,45,60,75,90

Taking first common multiples from these two we get 15,30,45.

The sum of first three common multiples is

$15 + 30 + 45 = 90$

The next step is the product of 10 and the sum of multiples

$10 \times 90 = 900$

Finally we are here to find the square root of product of 10 and the sum of first 3 common multiples of 5 and 15

$\sqrt{900} = 30$

the expansion of this question is

$\sqrt{10 \times (15 + 30 + 45)} = 30$

Therefore, the final answer obtained is 30.

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