Question

bag contains 4 red balls and 3 black balls. (1) What is the probability of drawing a red ball. (ii) What is the probability of drawing a black ball..​

Answer 1

Answer:

solution

Step-by-step explanation:

Correct option is

B

32

Total no. of balls =10+X

Probability of drawing black ball =10+XX

Probability of drawing white ball =10+X10

Given that the probability of drawing white balls is double that of black ball

∴10+XX=2(10+X10)

∴10+XX=(10+X20)

∴X=20

Probability of drawing black ball = 10+XX=3020=32

Answer 2

Answer:

1 4/7. 2 3/7 this is answer please mark me as the brainlist kk na