S.chand publication New Learning Composite mathematics solution of class 7 Chapter 16 Probability Exercise 16B

 Exercise 16B

Question 1

a	b	c	d	e	f
$\frac{16}{32} \text{ or }\frac{1}{2}$	$\frac{8}{32} \text{ or } \frac{1}{4}$	$\frac{4}{32} \text{ or } \frac{1}{8}$	$\frac{2}{32} \text{ or } \frac{1}{16}$	$\frac{1}{32}$	$\frac{1}{32}$

Question 2

(a) Orange – $\frac{1}{4}$

(b) Lichi – $\frac{1}{2}$

Question 3

(a) a green marble – $\frac{9}{10}$

(b) a blue marble – $\frac{1}{10}$

Question 4

(a) a 4 up – $\frac{1}{6}$

(b) a 2 up – $\frac{1}{6}$

Question 5

Ans – $\frac{1}{5}$

Question 6

(a) There are 26 red card

The probability of the top card will be a red card $=\frac{26}{52} =\frac{1}{2}$

(b) There are 9 x 4 = 36 number card.

Therefore, the probability of the top card is a number card $=\frac{36}{52}= \frac{9}{13}$

Question 7

(a) $\frac{2}{8}= \frac{1}{4}$

(b) $\frac{3}{8}$

(c) $\frac{2}{8} = \frac{1}{4}$

(d) $\frac{1}{8}$

Question 8

(a) $\frac{1}{6}$

(b) $\frac{2}{6}= \frac{1}{3}$

(c) $\frac{3}{6}=\frac{1}{2}$

(d) $=\frac{0}{6}=0$

Question 9

(a) $\frac{3}{14}$

(b) $\frac{5}{14}$

(c) $\frac{4}{14}=\frac{2}{7}$

(d) $\frac{2}{14}=\frac{1}{7}$

(e) $\frac{4+5+2}{14}=\frac{11}{14}$

(f) $\frac{3+4+2}{14}=\frac{9}{14}$

Question 10

Figure to be added