9, 7, 7, 9, 13 ?

senthilkumaran   13 years AGO

the diff is in increasing order of -2,0,2,4
and the next term is 6 difference
so it will be 19.

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Karthik Pandiyan   13 years AGO

SQUARE(3)=9
SQUARE(4)=16=1+6=7 ;
SQUARE(5)=25=2+5=7 ;
SQUARE(6)=36=3+6=9;
SQUARE(7)=49=4+9=13;
SQUARE(8)=64=6+4=10 ;

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A J V   13 years AGO

9, 7, 7, 9, 13
diff between 9 and 7--->-2
diff between 7 and 7--->0
diff between 7 and 9--->2
diff between 9 and 13--->4
the diff are in increasing order like -2,0,2,4
so next term is 6 difference
so it will be 19.

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YadeeshKumar   13 years AGO

9, 7, 7, 9, 13
diff between 9 and 7--->-2
diff between 7 and 7--->0
diff between 7 and 9--->2
diff between 9 and 13--->4
the diff are in increasing order like -2,0,2,4
so next term is 6 difference
so it will be 19.

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Dr.Dipin Singh   13 years AGO

9, 7, 7, 9, 13 ?
This is a series . with first term 9 and next term is given by adding -2, 0, 2,4,6,8.

Hence next term will be 13+6=19

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Dimple   13 years AGO

13+6=19.

Nth term = (N-1)th term -2 + (n-2)*2......
so 6th term = 13-2 +(6-2)*2= 13-2+8 =19

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Garima   13 years AGO

n th term = (n-1) th term + (n-3)*2>>
Hence
2nd term = 9+(2-3)x2 =9-2=7
and
6th term = 13+(6-3)*2= 13+3*2=13+6=19

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MP    13 years AGO

13+6=19... option 9

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karthikeyan.a   13 years AGO

-2,0,+2,+4,+6

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S. Singh   13 years AGO

9+(-2)=7
7+(0)=7
7+2=9
0+4=13
13+6=19

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balaji   13 years AGO

difference is -2,0,2,4, and next difference is 6
so 13+6=19

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ASHOK ROY   13 years AGO

The series is going like: -2,0, +2, +4, +6,...
So the 6th no. in the series is: 5th No. +6= 13+6= 19..... Option 9)

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Mamon Sengupta   13 years AGO

The series is going like: -2,0, +2, +4, +6,...
So the 6th no. in the series is: 5th No. +6= 13+6= 19..... Option 9)

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SUDESHNA SEN   13 years AGO

The series is going like: -2,0, +2, +4, +6,...
So the 6th no. in the series is: 5th No. +6= 13+6= 19..... Option 9)

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Trishita Dasgupta   13 years AGO

The series is going like: -2,0, +2, +4, +6,...
So the 6th no. in the series is: 5th No. +6= 13+6= 19..... Option 9)

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Parbati Sen   13 years AGO

The series is going like: -2,0, +2, +4, +6,...
So the 6th no. in the series is: 5th No. +6= 13+6= 19..... Option 9)

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Sudeshna Sengupta   13 years AGO

The series is going like: -2,0, +2, +4, +6,...
So the 6th no. in the series is: 5th No. +6= 13+6= 19..... Option 9)

Like? Yes (1) | No   

Somdatta Mukherjee   13 years AGO

The series is going like: -2,0, +2, +4, +6,...
So the 6th no. in the series is: 5th No. +6= 13+6= 19..... Option 9)

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Achelal Sharma   13 years AGO

as u see the difference between the numbers is
-2,0,2,4
so the next number should be 19 the difference is 6

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ANIRBAN CHATTERJEE   13 years AGO

The series is going like: -2,0, +2, +4, +6,...
So the 6th no. in the series is: 5th No. +6= 13+6= 19..... Option 9)

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ARKA GANGULY   13 years AGO

The series is going like: -2,0, +2, +4, +6,...
So the 6th no. in the series is: 5th No. +6= 13+6= 19..... Option 9)

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sanjib biswas   13 years AGO

The series is going like: -2,0, +2, +4, +6,...
So the 6th no. in the series is: 5th No. +6= 13+6= 19..... Option 9)

Like? Yes (1) | No