Practice Test · Class 10

Arithmetic Progressions

10 questions randomised from the chapter. Type each final answer and submit to see your score.

00:01

0/10 attempted

S_{20}

5, 8, 11, \ldots

Sum of first

n

terms is

3n^2 + 5n

. Find

n^{th}

term.

Sum of first

50

natural numbers.

How many terms of

2, 4, 6, \ldots

add to

110

Three numbers in AP have sum

24

and product

440

Which term of the AP

3, 8, 13, \ldots

78

Which term of

21, 18, 15, \ldots

-81

Find

a_{25}

2, 5, 8, \ldots

a_n

of AP

10, 7, 4, \ldots

when

n = 15

The 7th term of an AP is 34 and 13th is 64. Find the AP.