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Question
The 7th term of an A.P. is $$4$$ and its common difference is $$-4$$. The first term of the A.P. is ______.
Options
$$32$$
$$28$$
$$24$$
$$36$$
MCQ
Fill in the Blanks
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Solution
The 7th term of an A.P. is $$4$$ and its common difference is $$-4$$. The first term of the A.P. is 28.
Explanation:
Since $$\mathrm{T}_{7} = a + 6d = 4$$, we get $$a - 24 = 4$$, hence $$a = 28$$.
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