Arithmetic Progession- maths quiz


Arithmetic progressions- math quiz 



1. How many 2 digit numbers are divisible by 5
     
           A) 18
           B) 19
           C) 21
             D) 22
      

... Answer is A)
Solution



2. if k+2, 4k-6 and 3k-2 are the three consecutive terms of an A.P. then value of k is
       
            A) 1
            B) 2  
            C) 3  
            D) 4

... Answer is C)
Solution



3. Find the sum of first 20 terms of A.P. if its 3rd term is 7 and 7th term exceeds three times the 3rd term by 2

          A) 700
          B) 720
          C) 740
          D) 760

... Answer is C)
Solution



4. which term of the AP 3, 15, 27, 39..........will be 132 more than its 54th term

 A) 66th term
 B) 65th term 
 C) 72th term 
 D) 76th term

... Answer is B)
Solution



5. Arithmetic mean between 5 and 15

           A) 9
           B) 10
           C) 11
           D) 12

... Answer is B)
Solution



6. How many three digit numbers are divisible by 7 ?
          
           A) 126
           B) 122
           C) 1390
           D) 128

... Answer is D)
Solution



7. Find the sum of all numbers less than 500 that are divisible by 7
          
           A) 16892
           B) 17892
           C) 18892
           D) 19892

... Answer is B)
Solution



8. Arithmetic mean of 8, 10, 12, 14, 16......

           A) 12
           B) 14
           C) 15
           D) 16

... Answer is A)
Solution



9. find the 12th term of A.P. with first term 9 and c.d.= 10

           A) 109
           B) 111
           C) 119
           D) 120

... Answer is C)
Solutions

10. 54th term of AP 3, 15, 27, 39......... is

               A) 739
               B) 630
               C) 639
             D) 636
               

... Answer is B)
Solution




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( type your answer and questions below comment box )

Ruhi: question no. 2


4k - 6 - (k+2) = 3k - 2 - (4k - 6)
4k -6 -k - 2 = 3k - 2 - 4k + 6
3k - 8 = -k + 4
3k +k = 4 + 8
4k = 12
 k =  3

Ruhi: plz question no 6 explain anyone ?