M4maths Previous Puzzles

02 Mar 2015 Sequence

What is the next number of the following sequence
27, 99, 198, 1089, .....

OPtion

1) 10890
2) 19198
3) 17160
4) 18190
5) 19184
6) 20190
7) 19202
8) 17784
9) 18818
10) 19910

Solution

27
27 + 72 = 99
99 + 99 = 198
198 + 891 = 1089
1089 + 9801 = 10890

Option 1)

Correct Option: 1 Best Solution (19)

Harish Reddy Namala   9 years AGO

The series should be 27,99,198,1089,....
27 + 72 = 99
99 + 99 =198
198 + 891 = 1089
1089+ 9801 = 10890

Like? Yes (8) | No (1)  

Jaspalsingh Parmar   9 years AGO

option 1 is correct

Like? Yes (2) | No   

tasho k   9 years AGO

Reversing the digits of number and then adding..
198 +891=1089
1089+9801=10890

Like? Yes (2) | No   

putty keerthi   9 years AGO

here,first the interchange numbers,after they put 0

Like? Yes (2) | No   

Nikita Khare   9 years AGO

sum of digits is equal to 9

Like? Yes (2) | No   

Renugadevi   9 years AGO

option is 1

Like? Yes (2) | No (1)  

KALYAN KUMAR REDDY VALLURU   9 years AGO

only option 1 and 8 are divisible by 9, option i will best suits

Like? Yes (2) | No (1)  

Jitendra Prasad   9 years AGO

27+72=99*2=198
198+891=1089
1089+9801=10890

Like? Yes (2) | No (1)  

sandeep kumar   9 years AGO

ANS= 10890

Like? Yes (1) | No   

Pankaj kumar   9 years AGO

sum of digit is multiple of 9 so option 1:1+0+8+9+0=18.same as problem.

Like? Yes (1) | No   

surendiran   9 years AGO

b

Like? Yes (2) | No (1)  

madhusudhana   9 years AGO

in this sequence all numbers are divisible of 9. in the given list of answers only 1st and 8th are the divisible of 9 without a decimal part left. so if we have to pick up the answer only from the given option 10890 would be the right pick.

Like? Yes (2) | No (1)  

surya    9 years AGO

Since it is odd number

Like? Yes (1) | No   

ABHINAV PUSHPAM   9 years AGO

Guess

Like? Yes (1) | No   

RAHUL KUMAR   9 years AGO

Ans is 10890

Like? Yes (1) | No   

Preeti Jain   9 years AGO

as the given numbers in sequence are divisible by 9 and in given option only 1st that is 10890 is divisible by 9.

Like? Yes (2) | No (2)  

Prem K   9 years AGO

Addition of all the digits in every elements is equal to "9" . Hence the only such element in the answer is option 1. Also the number of digits is increased by one for every step. Thus I went for option 1

Like? Yes (2) | No (2)  

Shanmugapriya.G   9 years AGO

sum of the digit is 9...so option is 10890

Like? Yes (2) | No (2)  

shahbaz Alam Ansari   9 years AGO

multiple of 9

Like? Yes (2) | No (2)