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Last term of the arithmetic progression 8,15,22 is 218. find the number of terms |
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Answer» ong>ANSWER: n=31 Step-by-step explanation: Given : a=8 d=T²-T¹ =15-8 =7 LAST term=218 To find: no. of term : a+(n-1)d solution: l =a +(n-1)d 218 =8+(n-1)7 218-8=(n-1)7 210=(n-1)7 210/7 = n-1 30= n-1 n=31 |
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