CBSE Class 10 Maths (Basic) 2023 · Paper 430/5/1 · Question 38

Probability 4 marks Hard

Some students were asked to list their favourite colour. The measure of each colour is shown by the central angle of a pie chart given below. Study the pie chart and answer the following questions :

Central angles for each favourite colour in the pie chart
Colour	Central angle
Green	$6 0^{\circ}$
Blue	$6 0^{\circ}$
Red	$3 0^{\circ}$
Yellow	$9 0^{\circ}$
White	$12 0^{\circ}$

Pie chart of favourite colours with central angles

(i)If a student is chosen at random, then find the probability of his/her favourite colour being white ?[1]
(ii)What is the probability of his/her favourite colour being blue or green ?[1]
(iii)(a)If 15 students liked the colour yellow, how many students participated in the survey ?[2]
(iii)(b) ORWhat is the probability of the favourite colour being red or blue ?[2]

Answer

(i)

\frac{1}{3}

; (ii)

\frac{1}{3}

; (iii)(a) 60 students; (iii)(b)

\frac{1}{4}

🔒 Step-by-step solution

From the board paper

CBSE Class 10 Maths (Basic) 2023 · Paper 430/5/1, Question 38 — all 38 questions with answers →

CBSE Class 10 Maths (Basic) 2023 · Paper 430/5/1 · Question 38

Answer

From the board paper

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