Important Questions: Arithmetic Progressions
10 Questions MCQ Test Mathematics (Maths) Class 10 | Important Questions: Arithmetic Progressions
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The first term and the common difference for the 
are respectively
are respectivelyIf p, q, r are in AP, then p3 + r3 - 8q3 is equal to
∵ p, q, r are in AP.
∴ 2 q = p + r
⇒ p + r - 2 q = 0
The given AP is √8, √18, √32,......... On simplifying the terms, we get:
In an AP, if a = 3.5, d = 0, n = 101, then an will be
a101 = 3.5 + 0 (100) = 3.5
The famous mathematician associated with finding the sum of the first 100 natural numbers is
Johann Friedrich Gauss, he was a German mathematician who find the sum of the first 100 natural number.
The list of numbers -10, -6, -2, 2, ... is
The 6th term from the end of the AP: 5, 2, -1 , -4 , . . . , -31 is
Two APs have the same common difference. The first term of one of these is -1 and that of the other is -8. Then the difference between their 4th terms is
a4 - b4 = (a1 + 3d) - (b1 + 3d)
= a1 b1 = - 1 - (-8) = 7
Which term of the AP : 21, 42, 63, 84, ... is 210 ?
If the nth term of an AP is (2n + 1), then the sum of its first three terms is
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