Arithmetic Progression

The 20th term of the progression 1, 4, 7, 10, … is:

• (a) 58
• (b) 52
• (c) 50
• (d) None

The last term of the A.P. 0.6, 1.2, 1.8, … to 13 terms is:

• (a) 8.7
• (b) 7.8
• (c) 7.7
• (d) None

Which term of the progression –1, –3, –5, … is –39?

• (a) 21st
• (b) 20th
• (c) 19th
• (d) None

The number of numbers between 74 and 25,556 divisible by 5 is:

• (a) 5090
• (b) 5097
• (c) 5095
• (d) None

The first three terms of sequence when n^th term t_n is n² – 2n are:

• (a) –1, 0, 3
• (b) 1, 0, 2
• (c) –1, 0, –3
• (d) None

Insert 4 arithmetic means between 4 and 324.

• (a) 68, 132, 196, 340
• (b) 68, 132, 196, 260
• (c) 32, 132, 196, 260
• (d) None

Divide 69 into three parts which are in A.P. and are such that the product of the first two parts is 483.

• (a) 22, 24, 26
• (b) 21, 23, 25
• (c) 27, 29, 31
• (d) None

The sum of the series 9, 5, 1, … to 100 terms is:

• (a) –18,900
• (b) 18,900
• (c) 19,900
• (d) None

The sum of the series 3½ + 7 + 10½ + 14 + … to 17 terms is:

• (a) 530
• (b) 535
• (c) 535½
• (d) None

The sum of all odd numbers between 200 and 300 is:

• (a) 11,600
• (b) 12,490
• (c) 12,500
• (d) 24,750