Ram put some buttons on the table. There were 4 blue, 7 red, 3 black and 6 white buttons in all. All of a sudden, a cat jumped on the table and knocked out one button on the floor. What is the probability that the button on the floor is blue?

\frac{3}{5}

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

\frac{7}{20}

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

\frac{1}{5}

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!

Open in App

Solution

The correct option is C $\frac{1}{5}$
Probability that the button on the floor is blue $= \frac{Number of blue buttons}{Total number of buttons}$
Number of blue buttons = 4
Total number of buttons = 4 + 7 + 3 + 6 = 20

Therefore, Probability that the button on the floor is blue $= \frac{4}{20} = \frac{1}{5}$

Hence, option 'c' is correct.

Suggest Corrections

Similar questions

Question 12

Ram put some buttons on the table. There were 4 blue, 7 red, 3 black and 6 white buttons in all. All of a sudden, a cat jumped on the table an knocked out one button on the floor. What is the probability that the button on the floor is blue?

(a) $\frac{7}{20}$

(b) $\frac{3}{5}$

(d) $\frac{1}{4}$

Ram put some buttons on the table. There were $4 blue, 7 red, 3 black$ and $6 white$ buttons in all. All of a sudden, a cat jumped on the table and knocked out one button on the floor. What is the probability that the button on the floor is blue?

Question 12

(a) $\frac{7}{20}$

(b) $\frac{3}{5}$

(d) $\frac{1}{4}$

Q. in a bottle there are 7 red buttons , 5 green buttons and 8 purple buttons. what is the probability that randomly drawn button from the bottl is purple button? if one extra green button is put in the side of the
bottle , what will be the probability that randomly drawn button is purple?

Q. Observe the table, and answer the questions.

Each picture = 1 button
(i) On what basis are the buttons sorted?
(ii) The number of ______ buttons is equal to the number of _____ buttons, and they are the maximum in number.

Join BYJU'S Learning Program

Ram put some buttons on the table. There were 4 blue, 7 red, 3 black and 6 white buttons in all. All of a sudden, a cat jumped on the table and knocked out one button on the floor. What is the probability that the button on the floor is blue?

The correct option is C 15Probability that the button on the floor is blue =Number of blue buttonsTotal number of buttons Number of blue buttons = 4 Total number of buttons = 4 + 7 + 3 + 6 = 20 Therefore, Probability that the button on the floor is blue =420=15 Hence, option 'c' is correct.