Question

If 100times of 100th term of an ap is eual to 50times 50th term then find one 50th term then what is 150th term​

Answer 1

Answer:

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100(a+99d)=50(a+49d)

⇒ 2a + 198 d=a+49d

a+149d=0

∴T150=a+149=0

Answer 2

$\begin{gathered}{\underline{\underline{\maltese{\Huge{\textsf{\textbf{\orange{Solution:}}}}}}}}\end{gathered}$

$\sf{100(a+99d) = 50(a+49d)}$

$\sf{2a+198d = a+49d}$

$\sf{a+199d = 0}$

$\sf{So, T150 = a +149 = 0}$