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In an arithmetic progression, the difference between the fifth and first terms is (-20). What is the common difference?
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Answer and explanation
Correct answer: (-5)
From the first to the fifth term there are (4) gaps, so (4d=-20) and (d=-5). In a decreasing progression, (d) is negative.
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What is the correct answer to this question?
(-5)
Why is this the correct answer?
From the first to the fifth term there are (4) gaps, so (4d=-20) and (d=-5). In a decreasing progression, (d) is negative.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Arithmetic Progressions (AP). Topic: Introduction to APs and common difference..
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