A jar contains 3 red marbles, 7 green marbles and 10 white marbles. If a marble is drawn from the jar at random, what is the probability that this marble is white?

\frac{1}{2}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

\frac{1}{4}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

\frac{7}{10}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

\frac{3}{10}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B $\frac{1}{2}$
Total white marbles: $10$

Total Red marbles: $3$

Total green marbles: $7$

Total Marbles: $10 + 3 + 7 = 20$

Required probability:

$P = \frac{10}{20} = \frac{1}{2}$

Suggest Corrections

Similar questions

Q. The probability of selecting a green marble at random from a jar that contains only green, white and yellow marbles is

\frac{1}{4}

. The probability of selecting a white marble at random from the same jar is

\frac{1}{3}

. If this jar contains

10

yellow marbles. What is the total number of marbles in the jar?

Q. A box contains

7

red marbles,

10

white marbles and

5

green marbles. One marble is taken out of the box at random. What is the probability that the marble taken out will be
(i) not red? (ii) white? (iii) green?

A jar contains 8 white marbles, 10 orange marbles, and some red marbles. If the probability of picking a red marble is 1 in 4, then how many red marbles are there?
[4 MARKS]

Join BYJU'S Learning Program

A jar contains 3 red marbles, 7 green marbles and 10 white marbles. If a marble is drawn from the jar at random, what is the probability that this marble is white?

The correct option is B 12Total white marbles: 10Total Red marbles: 3Total green marbles: 7Total Marbles: 10+3+7=20Required probability:P=1020=12

The correct option is B $\frac{1}{2}$
Total white marbles: $10$

Total Red marbles: $3$

Total green marbles: $7$

Total Marbles: $10 + 3 + 7 = 20$

Required probability:

$P = \frac{10}{20} = \frac{1}{2}$