7. If 7 and 13 terms of an AP are 34 and 64 respectively, then its 18 term is
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Weather is the atmospheric condition of a given place and time. Types of weather include sunny, cloudy, rainy, windy, and snowy. One of the most significant factors that affects weather is air masses. Air masses cause warm, cold, stationary, and occluded fronts
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Let 1st term be "a" and common difference be "d" then 7 term and 13 term can be written as a+6d=34......equ.(1) a+12d=64......equ.(2) Solve both equ. We get a=4 & d=5 then So, 18 term be a+17d= 4+17 5 = 89
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