CBSE Class 10-Mathematics: Chapter – 5 Arithmetic Progressions Part 5 (For CBSE, ICSE, IAS, NET, NRA 2022)
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Question 22:
If there are terms in an AP, prove that the ratio of the sum of odd terms and the sum of even terms is
Answer:
Let a, d be the I term & Cd of the AP.
Question 23:
Find the sum of all-natural numbers amongst first one thousand numbers which are neither divisible or by
Answer:
Sum of all-natural numbers in first integers which are not divisible by i.e.. , sum of odd integers.
No՚s which are divisible by 5
Required sum
1 Mark Questions
Question 1:
The next term of the AP in is
(a) 97
(b) 92
(c) 99
(d) 95
Answer:
(a) 97
Question 2:
The 10th term of the AP in is
(a) 45
(b) 47
(c) 48
(d) 50
Answer:
(b) 47
Question 3:
If the sum of the circumferences of two circles with radii is equal to the circumference of a circle of Radius , then
(a)
(b)
(c)
(d) None of these
Answer:
(a)
Question 4:
If the perimeter of a circle is equal to that of a square, then the ratio of their area is
(a)
(b)
(c)
(d)
Answer:
(c)