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6 In a party bag of blue, red, green and yellow balloons, 55 are long balloons and 45 are round balloons BlueRed Green |Yellow 10 15 14 12 Long Round 10 (i) Find the values of a and b. (ii) Yizi takes a balloon at random from the bag and blows it up. Find the probability that the balloon she takes (a) is red, (b) is a blue round balloon, (c) is not yellow.
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Answer #1

Here,at first we find the values of 'a' and 'b' and then find the required probabilities using the classical definition of probabilities as follows--

G-→ There are total 55人ong balloons and 45 rtound balloons. since, there aie total 55 lon balloons So,we have, 45. 「 are . total 45 coun! Since, there 10+14 tb t孑 , ーballoons So, the ive taba takes the foom teen Lone 12 15 10 1 55 Round 10 4 445 Total 22 2924 25 to

7]러 takes a balloon at nandom from the b ng. So rred balloor 29 since, there are total IoOC 29 loo balloons amag 10O c w hieh 29 are stad, and here we use the 0.29 dlas ical delinition prababiub P da blue wound ba 1oox to 「Since, there are total to bue eound balloong out ,00 total 100 100 Cy balloov P mot selacting a lla balloox 25 2.5 since, thore ate . |total, 25 yellow。 = 1- loo ballooug out loo total balloous 10-75

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