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CBSE Class 10 Maths (Standard) 2017 · Paper 30/1/1 · Question 19

Probability 3 marks Medium

Two different dice are thrown together. Find the probability that the numbers obtained

(i)have a sum less than $7$
(ii)have a product less than $16$
(iii)is a doublet of odd numbers.

(i)have a sum less than $7$
(ii)have a product less than $16$
(iii)is a doublet of odd numbers.

Answer

(i)

P (sum < 7) = \frac{15}{36} = \frac{5}{12}

; (ii)

P (product < 16) = \frac{25}{36}

; (iii)

P (odd doublet) = \frac{3}{36} = \frac{1}{12}

.

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