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b
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c
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d
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Correct option is D
tm=tn1+(m−1)10=31+(n−1)5⇒m=n+72=λ⇒m=λ,n=2λ−7⇒m≤100,n≤1002λ−7=1002λ≤107λ=53 number of common terms are 53 the largest common term is t53=1+52×10=521Similar Questions
If and 1 are in A.P, then x is equal to
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