Question
A’ is the nth term of the given series and ‘B’ is
the (n + 1)th term of the given series. Choose the correct statement from the following statements (i), (ii) & (iii). Series: 1402, 698, 346, 170, 82, 38, 16, 5 (i) A = Two times of B + 6 (ii) 6B = Three times of A + √64 3 (iii) Difference between 1st and 2nd term from left side is two times of the difference between 2nd and 3rd term and so on.Solution
In the given series – If we take A = 1402 So, B = 698 Similarly, A = 698 So, 346 = B and so on -----  For (i) 1402 = 2 ×698+6            1402 = 1402 Similarly, 698 = 346 ×2+6  698 = 698 So, if we take any term of given series, then statement (i) following.  For (ii) 6 × 698 = 1402 ×3+4       4188 ≠4210 So, statement (ii) did not follow if we take any term of the given series as ‘A’ & ‘B’  For (iii) (1402 – 698) = 2 ×(698−346)       704 = 2 ×352       704 = 704 So, if we take any term of given series as A and B, then statement (iii) following
Water and steam(P)/ It used(Q)/to mechanise production(R)/ power(S).
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