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CBSE Class 10 Answered

which term of the progression 3,6,12,24....is 192
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Asked by yelleshroshanagarigoud | 05 Mar, 2024, 11:18: AM
answered-by-expert Expert Answer

correct are not answerImg

wrong, Series is not arithmetic progression but geometric progression.

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Correct answer is given below

Given geometric progression series is   3, 6, 12, 24, .............................

first term a = 3   and common ratio r = 2

n-th term , tn = a r(n-1) = 192

3 × (2)(n-1) = 192

2n-1 = 64 = 26

from above expression, n = 7

hence 192 is 7-th term of geometric progression series .

Answered by Thiyagarajan K | 05 Mar, 2024, 11:22: AM

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