Average Practice Test 5

Question : 33 of 40

Marks: +1, -0

A company produces on an average 4000 items per month for the first three months. How many items it must produce on an average per month over the next 9 months, to average 4375 items per month over the whole year?

4710
4680
4600
4500

Validate

Solution:

Let x be the number of average items per month for next 9 months.
Now,

{3 ×4000 +9×x}/12= 4375

⇒ 12000 + 9x = 52500

⇒ 9x = 52500 - 12000

∴ x = 40500/9 = 4500

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