Question

A box contains some marbles 5 of which are red and the remaining are white. The probability of picking a

red marble at random is





. Find i) number of white marbles in the box.

ii) probability of picking a white marbl​

Answer 1

Step-by-step explanation:

FORMULA FOR PROBABLITY= NO.OF EVNTS/POSSIBLE OUTCOMES

IN THIS CASE,LETS TAKE TOATL NO. OF MARBLES AS X

THEREFORE NO.OF WHITE MARBLES WILL BE=X-5

ATQ i) NO

OF WHITE MARBLES IN BOX = X-5

HERE X IS TOTAL NO OF MARBLES

ii) PROBABLITY OF PICKING WHITE MARBLE

= NO. OF WHITE MARBLES/TOTAL NO. OF MARBLES

= X-5/X

REGARDS@COMPUTER

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