Sign in Start free

CBSE Class 10 Maths (Standard) 2016 · Paper 30/1/1 · Question 29

Probability 4 marks Easy

A game of chance consists of spinning an arrow on a circular board, divided into

8

equal parts, which comes to rest pointing at one of the numbers

1, 2, 3, \dots, 8

(Fig. 9), which are equally likely outcomes. What is the probability that the arrow will point at

(i)an odd number
(ii)a number greater than $3$
(iii)a number less than $9$ .

Fig. 9: Circular spinner with 8 equal numbered sectors.

iProbability the arrow points at an odd number.
iiProbability the arrow points at a number greater than $3$ .
iiiProbability the arrow points at a number less than $9$ .

Answer

(i)

P (odd) = \frac{1}{2}

; (ii)

P (> 3) = \frac{5}{8}

; (iii)

P (< 9) = 1

.

🔒 Step-by-step solution

Sign up free to see every step of how it is worked out.

Sign up free Log in

From the board paper

CBSE Class 10 Maths (Standard) 2016 · Paper 30/1/1, Question 29 — all 31 questions with answers →

More questions from Probability

Class 10 Maths — every question with an expert-verified, step-by-step solution.

All 382 questions on Probability → Browse all Maths chapters →