Find the 10th term from the end of the following A .P. :
(i) 1. 6, 11, 16............201
(ii) 3, 6, 9, 12........... 102
(i) We have, l = 201,d = 5
∴ 10th term from the end
= l – (n –1) d
= 201 – (10 – 1)5
= 201 – 45 = 156.
(ii) We have, l = 102, d = 3,
∴ 10th term from the end
= l – (n – 1)d
= 102 – (10 – 1)3
= 102 – 27 = 75.
Write first four terms of the AP, when the first term a and the common difference d are given as follows:
a – 10, d = 10
Write first four terms of the AP, when the first term a and the common difference d are given as follows:
a = –2, d = 0
Write first four terms of the AP, when the first term a and the common difference d are given as follows:
a = 4, d = – 3
Write first four terms of the AP, when the first term a and the common difference d are given as follows:
a = – 1.25, d = – 0.25
For the following APs, write the first term and the common difference
3, 1, – 1, – 3, . . .
For the following APs, write the first term and the common difference
– 5, – 1, 3, 7, . . .
For the following APs, write the first term and the common difference
0.6, 1.7, 2.8, 3.9, . . .
Mock Test Series
