A bag contains 11 black, 8 blue, 5 red and 6 yellow balls. If 10 green balls are now added to the bag , find the percentage of blue balls in the bag.

$20$ %

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$25$ %

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$22$ %

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$\frac{80}{3}$ %

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Solution

The correct option is A
$20$ %

Total no. of balls in the bag = 11 + 8 + 5 + 6 + 10 = 40

No. of blue balls = 8

$∴$ Percentage of blue balls = $\frac{8}{40} \times 100$ = $20$ %

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A bag contains 11 black, 8 blue, 5 red and 6 yellow balls. If 10 green balls are now added to the bag , find the percentage of blue balls in the bag.

The correct option is A 20% Total no. of balls in the bag = 11 + 8 + 5 + 6 + 10 = 40 No. of blue balls = 8 ∴ Percentage of blue balls = 840×100 = 20%

The correct option is A
$20$ %

Total no. of balls in the bag = 11 + 8 + 5 + 6 + 10 = 40

No. of blue balls = 8

$∴$ Percentage of blue balls = $\frac{8}{40} \times 100$ = $20$ %