4 18 100 350 Find the next term

4 18 100 350
after the first difference
14 82 250
after the second diff
68 168 ..... so the differnce is 100 so in the second difference next no will be 268
again in first difference it will be like
14 82 250 518
and at last the next term will be
4 18 100 350 868
9 years agoHelpfull: Yes(9) No(1)
according to me the series should be rectified to...
4 18 100 294__...so that the series should go like this...
1*2^2 2*3^2 4*5^2 6*7^2 10*11^2...& so on...
I hope it is correct now...those who agree please say "yes"...those not please submit your solution & then say "no"...
10 years agoHelpfull: Yes(6) No(17)
180 is right answer,, 4 = 1×2^2, 18 = 2×3^2, 48 = 3×4^2, 100 = 4×5^2, ...

So I believe the next number would be 180 or 5×6^2. say yes or say no
9 years agoHelpfull: Yes(5) No(3)
the series should be 4 18 100 294 ___
replace 350 by 294
10 years agoHelpfull: Yes(2) No(30)
12 because the boxes are sealed
9 years agoHelpfull: Yes(1) No(3)
i think the term 350 should be replaced by 294...the final ans would be 1210...
2^3-2^2=4
3^3-3^2=18
5^3-5^2=100
7^3-7^2=294
11^3-11^2=1210
9 years agoHelpfull: Yes(1) No(1)
1*2^2(here,1=2-1),2*3^2(here,2=3-1),4*5^2(here,4=5-1)
and the base is following the sequence 2,3,5
therefore the next number will be 8.
Then, the required number will be 7*8^2(here 7=8-1 as mentioned in the above series)
ans:448
10 years agoHelpfull: Yes(0) No(2)
i think answer will be 8*9^2=648
10 years agoHelpfull: Yes(0) No(1)

4 18 100 350 ___
Find the next term