17,9,?,16.5,35,90

Question

17,9,?,16.5,35,90

anonymous · Answer

is there any maths trick for number series please help me

raden · Answer

looks this question from brilliant.org  :)

raden · Answer

(17 + 1) * [1/2] = 9
(9 + 1) * [2/2] = 10
(10 + 1) * [3/2] = 33/2
(33/2 + 1) * [4/2] = 35
(35 + 1) * [5/2] = 90

anonymous · Answer

are u there

raden · Answer

im here

anonymous · Answer

is there any technique to find number series.

anonymous · Answer

i have many questions from number series .but i am not able to solve.it took one day for this q to solve.but i didnt get the answer

raden · Answer

not sure too, i just do trial error and make the patterent be correct :)

anonymous · Answer

but ur answer right.i didnt strike this concept

raden · Answer

i ever see that question like same in brilliant's question

anonymous · Answer

if there is any technique.please post me

anonymous · Answer

oh... brilliant is a website for maths

raden · Answer

i think depend on which series, sometimes easy and sometimes hard for me :)

anonymous · Answer

k.i thought there will be tricks for number series

raden · Answer

i was opening my akun in briliant, this is like your question above :
What is the 6th term in the following sequence:
12,6,4,3,2 2/5,?.

2 2/5 is a mix fraction

raden · Answer

that's why i remembered how to solve your question :)

anonymous · Answer

may i know your educational qualification

raden · Answer

im a teacher in grade 7,8,...,12  :)
hehe

anonymous · Answer

hmmmmmmm..............

anonymous · Answer

really.this is only for students i thought

raden · Answer

i coming to this site helps the members of OS, if i can :)

anonymous · Answer

grt...