If the average age of $5$ students is $40$ years. What is the sum of their ages.

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Solution

Let the sum of their ages be x.
Then $\frac{x}{5} = 40$
so $x = 5 \times 40$
$x = 200$ .

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If the average age of 5 students is 40 years. What is the sum of their ages.

Let the sum of their ages be x.Then x5=40so x=5×40x=200.

If the average age of $5$ students is $40$ years. What is the sum of their ages.

Let the sum of their ages be x.
Then $\frac{x}{5} = 40$
so $x = 5 \times 40$
$x = 200$ .