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A bax has 100 blue balls, 50 red balls, ...

A bax has 100 blue balls, 50 red balls, 50 black balls. 25% of blue balls and 50% of red balls are taken away. Percentage of black balls at present is

A

`50%`

B

`25%`

C

`33(1)/(3)%`

D

`40%`

Text Solution

Verified by Experts

The correct Answer is:
C
नीला = 100
लाल = 50
काला = 50
कुल = 200
25% Blue Balls निकाले के बाद Blue Balls की संख्या
`=100-25=75`
50% Red Balls निकालने के बाद Red Balls की संख्या
`=50-50xx(50)/(100)`
= 25
`therefore` कुल Balls की संख्या `=75+25+50=150`
`therefore` काला का `%=(50)/(150)xx100`
`=33(1)/(3)%`
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