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Answer :
(i) Refer to fig. Question 1-(a)
Total number of sectors = 5
Number of sectors where the pointer stops at D = 1, because there is only one ‘D’ on the spinning wheel.
Probability of pointer stopping at D = \(\frac{1}5\)
(ii) Number of aces = 4 (one from each suit i.e. heart, diamond, club and spade)
Total number of playing cards = 52
Probability of getting an ace=\(\frac{Number\; of\; aces}{Total\; number\; of \;playing \;cards}\)
\(=\frac{4}{52}=\frac{1}{13}\)
(iii) Total number of apples = 7
Number of red apples = 4
Probability of getting red apples=\(\frac{Number \;of\; red \;apples}{Total \;number\; of \;apples}=\frac{4}7\)