Discussion of Question with ID = 067 under Percentages

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Question

A carton contains 3000 led bulbs, some of them are red, some green and others are blue. How many are green if 9% are red and 5% are blue?

A

2580.

B

2680.

C

2480.

D

2780.

Soln.
Ans: a

The percentage of green is 100 - (9 + 5) = 86. So number of green bulbs = $86/100$ × 3000 = 2580.


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