What is the next number of the following sequence 1, 9, 54, 270,.......

M4maths Previous Puzzles

08 Sep 2014 Sequence What is the next number of the following sequence 1, 9, 54, 270,.......: OPtion
1) 1190
2) 1220
3) 1215
4) 1210
5) 1150
6) 1165
7) 1250
8) 1275
9) 1350
10)None of these; Correct Option: 3 Best Solution (26)

sumit 10 years AGO

1*3^0=1
(1+2)*3^1=9
(1+2+3)*3^2=54
(1+2+3+4)*3^3=270
(1+2+3+4+5)*3^4=1215 option(3) ans

Like? Yes (27) | No (6)

RAKESH 10 years AGO

1*3^0
3*3^1
6*3^2
10*3^3
15*3^4 = 1215

Like? Yes (13) | No (5)

Inline Geek 10 years AGO

The sequence is like

3^0 * (1) = 1,
3^1 * (1+2) = 9,
3^2 * (1+2+3) = 54,
3^3 * (1+2+3+4) = 270,

next term would be:

3^4 * (1+2+3+4+5) = 1215

Like? Yes (7) | No (2)

Neel Patel 10 years AGO

1*3^0=1
(1+2)*3^1=9
(1+2+3)*3^2=54
(1+2+3+4)*3^3=270
so ans
(1+2+3+4+5)*3^4=1215

Like? Yes (3) | No

somaiah tummala 10 years AGO

1 * 3^0 = 1
3 * 3^1 = 9
6 * 3^2 = 54
10 * 3^3 = 270
so the answer is : 15 * 3^4 = 1215

from above multiplications we get:

the difference between the 1,3 ; 3,6 ; 6,10 is 2,3,4 respectively
so next number is 5 that means the difference between the 10,5 is 5

Like? Yes (3) | No

Mogilipuri.Harish 10 years AGO

1*3^0 => 1
here 1+2= 3 then
3*3^1 => 9
here 3+3 = 6 then
6*3^2 => 54
here 6+4 =>10 then
10*3^3 =>270
here 10+5= 15 then
15*3^4 =>1215

ans: 1215

Like? Yes (4) | No (2)

palasiva 10 years AGO

1*3^0, 3*3^1, 6*3^2, 10*3^3,15*3^4
= 1,9,54,270,1215

Like? Yes (4) | No (2)

Deepak Reegan A 10 years AGO

1215 is the answer , though 1215 get as 5 *3 *3 *3*3 *3, others doesnt have

Like? Yes (1) | No

kumar aryan 10 years AGO

1=1*1
9=3*3
54=9*6
270=27*10
so next number is 81*15=1215

Like? Yes (1) | No

elamaran 10 years AGO

each alone sum of 2nd,3rd, and 4 no s are 9

Like? Yes (1) | No

subhashis mondal 10 years AGO

1*1=1
3*3=9
6*9=54
10*27=270
15*81=1215

Like? Yes (1) | No

Divakar 10 years AGO

sum is 9 in 1215 as in 9,54 and 270 the digits sum is 9

Like? Yes (1) | No

GAURAV CHOUDHARY 10 years AGO

1*1 = 1
3*3 = 9
6*9 = 54
10*27 = 270
15*81 = 1215

Like? Yes (1) | No

Prashant Rupnur 10 years AGO

does not know

Like? Yes (1) | No

Jyothi P 10 years AGO

3^0*1 ,3^1 *3,3^2*6,3^3*10,3^4*15
here, first term is 3 powers starting from 0
second term 1,3,6,10
we get 3 by adding 2 to previous term 1
we get 6 by adding 2+1 to previous term
we get 10 by adding 3+1 to previous term
so next term will be prev term 10+4+1=15
hence 3 power 4 multiply by 15 we get 1215.

Like? Yes (1) | No

abhishek pandey 10 years AGO