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<blockquote data-quote="MihiCherub" data-source="post: 12588752" data-attributes="member: 238676"><p><span style="font-size: 15px">1. 18 DAYS</span></p><p><span style="font-size: 15px">There are three possible types of day:</span></p><p><span style="font-size: 15px">(a) Rain in the morning and fine in the afternoon</span></p><p><span style="font-size: 15px">(b) Fine in the morning and rain in the afternoon</span></p><p><span style="font-size: 15px">(c) Fine in the morning and fine in the afternoon</span></p><p><span style="font-size: 15px">Let the number of such days in each category be a, b, and c.</span></p><p><span style="font-size: 15px">number of days on which rain falls = a + b = 13</span></p><p><span style="font-size: 15px">number of days having fine mornings = b + c = 11</span></p><p><span style="font-size: 15px">number of days having fine afternoons = a + c = 12</span></p><p><span style="font-size: 15px">From these equations, we derive that a = 7, b = 6, and c = 5.</span></p><p><span style="font-size: 15px">.'. number of days on vacation is 7 + 6 + 5 = 18.</span></p><p><span style="font-size: 15px"></span></p><p><span style="font-size: 15px">රෙප් දෙන්න බෑලු. එලz..</span></p><p><span style="font-size: 15px"></span></p></blockquote><p></p>
[QUOTE="MihiCherub, post: 12588752, member: 238676"] [SIZE=4]1. 18 DAYS There are three possible types of day: (a) Rain in the morning and fine in the afternoon (b) Fine in the morning and rain in the afternoon (c) Fine in the morning and fine in the afternoon Let the number of such days in each category be a, b, and c. number of days on which rain falls = a + b = 13 number of days having fine mornings = b + c = 11 number of days having fine afternoons = a + c = 12 From these equations, we derive that a = 7, b = 6, and c = 5. .'. number of days on vacation is 7 + 6 + 5 = 18. රෙප් දෙන්න බෑලු. එලz.. [/SIZE] [/QUOTE]
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