Question

400, 274, 209, 181, 172, _____

• A. 168
• B. 171
• C. 169
• D. 170

Answer 1

Answer:

D. 170

$400 - (5^3+1)=274$

$274-(4^3+1)=209$

$209-(3^3+1)=181$

$181-(2^3+1)=172$

$172-(1^3+1)=170$