Math, asked by sankalp9126, 5 months ago

There are 18 beads in a box . Some of them are white and the remaining are black.
The probability of drawing a black bead is 1/3 , Then
a) How many black beads are there in the box?
b) How many white beads are there in the box?
c) How many white beads should be added to it so that the probability of
drawing a black bead becomes ¼

Answers

Answered by cb809890
0

Answer:

a) 6 b) 12 c) 12

Step-by-step explanation:

no of black beads = 1/3 × 18 = 6

no of white = 18 - 6 = 12

required white beads = 6:X::1:4

=> X = 24

.: no of more white beads = 24-12 = 12

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