Chapter 6

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Chapter 6 MCQ's from chapter 6 Mathematics Book I

1. If the pth term of an A.P is q and the qth term is p, then its (p+q)th term is :

A) 0
B) p-q
C) p+q
D) (p+q)/2

2. The number of odd numbers between 60 and 360:

A) 148
B) 150
C) 153
D) 160

3. The middle term in the following arithmetic progression 20,16, 12,....,-176 is

A) -46
B) -76
C) -80
D) both B & C

4. If the nth term of a series is (3+n)/4, then the sum of 105 term is

A) 1470
B) 1360
C) 1530
D) 1500

5. The sum of positive terms of the series 10+ 9(4/7)+9(1/7)+...(

A) 352/7
B) 437/7
C) 852/7
D) 574/7

6. The maximum sum of the A.P 40,38,36,34,...is

A) 390
B) 420
C) 460
D) 560

7. If the ratio of the sum of n terms of two A.P is (2n-13):(5n+21), then the ratio of 24th terms of teh two progressions is

A) 2:3
B) 1:2
C) 2:1
D) 3:2

8. If four numbers in A.P are such that their sum is 20 and sum of their sequares is 120, then the numbers are

A) 1,4,7,10
B) 3,5,7,9
C) 2.4,6,8
D) 2,3,4,5

9. If four numbers in A.P are such that their sum is 50 and the greatest number is 4 times the least, then the numbers are.

A) 5,10,15,20
B) 4,10,16,22
C) 3,7,11,15
D) 10,15,20,30

10. If the length of sides of a right angled triangle are in A.P , then their ratio is

A) 2:3:4
B) 3:4:5
C) 4:5:6
D) 1:2:3