Arithmetic progessions- maths quiz

1. Arithmetic mean of  8, 10, 12, 14, 16, .......... is
  A) 12
  B) 14
  C) 10
  D) 8


... Answer is A)
A) 12  



2. The common difference of an A.P. whose nth term is
5-6n
 A)  -4
 B)  -5
 C)  -6
 D)  -7

... Answer is C)
Solution: -6  

    3. Sum of all the numbers between 10 and 200 which are exactly divisible by 6
     A) 3360
     B) 3260
     C) 3060
     D) 3460
... Answer is A)
Solutions: 





4. which term of these sequence -3, -7, -11, ..... is -403
 A) 100
 B) 101
 C) 102
 D) 103

... Answer is B)
Solutions:



5. The sides of the right angled triangle are in A.P. , then they will by equal to
 A) 2, 4, 5
 B) 3, 4, 5
 C) 1, 2, 3
 D) 2, 3, 5

... Answer is B)
Solution:

    6. The sum of series 2+15+18+21.......+30 is:
     A)  1470
     B)  147
     C)  1407
     D)  1070
... Answer is B)
Solution:



7. the sum of three numbers in A.P. IS 24 and product is 440. its middle term will be
 A)  6
 B)  7
 C)  8
 D)  9

... Answer is C)
Solution: 

    8. the third term of the series of an A.P. is 1/5of 5th term is 1/3 then 1st term is
     A)  1/15
     B)  15
     C)  -15
     D)  -1/15
... Answer is D)
Solution: 



9. If the first term of A.P. is 5 and 100th term is -292, then find the 50th term of A.P
 A) 142
 B) 143
 C) -142
 D) -143

... Answer is C)
Solution:

    10. How many terms of the A.P. 1,  4, 7......... are needed to given sum 3725?
     A) 60
     B) 45
     C) 50
     D) 65
... Answer is C)
Solution: