1.  Choose the best alternative.
182 : ? : : 210 : 380

A. 156
B. 240
C. 272
D. 342

Answer: Option D

Explanation:

Clearly, 210 = (15)²-15 and 380 = (15+5)² - (15 +5). Now, 182 = (13)² + 13. So, required number = (13+5)² + (13+5) = (18)² + 18 = 342.