IBM
Company
Numerical Ability
Sequence and Series
2^2,2^3,2^-1,8^4,8^7,8^-3,11^5,11^3,11^2,14^6,14^9
Read Solution (Total 4)
-
- 2^2 then 2^3 where powers of 2 i.e. 2-3=-1
therefore next term 2^-1
similarly 8^4 & 8^7 where 4-7=-3
therefore next term 8^-3
so the answer is 14^-3 (Continuing this process) - 7 years agoHelpfull: Yes(17) No(1)
- 14^-3
here 2^2 then 2^3 so next is 2^-1 so it get by 2-3=-1 ,so in 8^4,8^7 then nest is 8^-3 it is get by 4-7=-3 it become 8^-3 so in last 14^6,14^9 then 6-9=-3 so 14^-3 - 7 years agoHelpfull: Yes(4) No(1)
- Ans : 2^2, 2^3, 2^-1 =2^2+1 then we will get middle number as 2^3
8^4, 8^7, 8^-3 = 8^4+3 then we will get middle number as 8^7
11^5,11^3, 11^2 = 11^5-2 then we will get middle number as 11^3
similarly 14^6,14^9,14^15 =14^9 then we will get middle number as 14^9
so tha ans is 14^15 or 14^-15 according to choice - 7 years agoHelpfull: Yes(0) No(0)
- 14^-3
this is because the series is in the order: the power of the third number= power of the first number -power the next number. Here number refers to the base number( all the three bases must be same) - 6 years agoHelpfull: Yes(0) No(0)
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