CBSE Class 10-Mathematics: Chapter – 5 Arithmetic Progressions Part 23 (For CBSE, ICSE, IAS, NET, NRA 2023)
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Question 19:
If term of an A. P is twice the term, show that term is twice the term.
Answer:
Question 20:
The sum of four numbers in AP is and the greatest number four times the least. Find the numbers.
Answer:
Let no. be
According to question,
Numbers be
Question 21:
Find the sum of all integers between and which are multiples of .
Answer:
Question 22:
If term of an A. P is and the term is , show that the sum of terms is .
Answer:
On solving (i) and (ii)