Find out the missing number.
3, 5, 18, ? , 320
Correct Answer: Description for Correct answer:
\( \Large 3 \times 1+2 \times 1^{2}=3+2=5 \)
\( \Large 5 \times 2+2 \times 2^{2}=10+8=18 \)
\( \Large 18 \times 3+2 \times 3^{2}=54+18=72 \)
\( \Large 72 \times 4+2 \times 4^{2}=288+32=320 \)
Part of solved Number series questions and answers :
>> Aptitude >> Number series