Select the option that is related to the fifth number in the same way as the second number is related to the first number and fourth number is related to third number. 121 : 145 : : 49 : 65 : : 169 : ? |
197 196 198 193 |
197 |
121 : 145 : : 49 : 65 : : 169 : ? The logic followed here is: 112 = 121 122 + 1 = 144 + 1 = 145 and 49 : 65 72 = 49 82 + 1 = 64 + 1 = 65 Similarly 169 : ? 132 = 49 132 + 1 = 169 + 1 = 170 |