CBSE Class 10-Mathematics: Chapter –5 Arithmetic Progressions Part 23

Get top class preparation for CBSE right from your home: fully solved questions with step-by-step explanation- practice your way to success.

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)