Question

There are 10 beads in a bag. 5 beads are black; 3 beads are white and the rest are red. A bead is picked at random. Find the probability that it will be



(a)black or red
(b) not blue

Answer 1

Answer:

(a) BLACK - 1/2, RED - 1/5

(b) NOT WHITE - 7/10

STEPS:

SOLVE FOR RED BEADS:

Solving for red beads- 10-(5+3)

red beads- 10-8 =

=> 2 red beads

BLACK PROBABILITY:

5/TOTAL

=> 5/10 (in simplest form - 1/2)

RED PROBABILITY:

We have solved for red beads above,

PROBABILITY = 2/TOTAL

=> 2/10 (in simplest form - 1/5)

NOT WHITE PROBABILITY:

White beads = 3

Rest beads = 10-3 = 7

PROBABILITY = 7/TOTAL

=> 7/10 (already in simplest form)

*HAD A CONCERN AS BLUE BEADS WEREN'T MENTIONED IN THE QUESTION, CONSIDERED IT AS WHITE*

HOPE IT HELPS

Answer 2

Answer:

Step-by-step explanation: