The second number in the given number pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) are followed in all the number pairs except one. Find that odd number pair. |
16 : 224 21 : 399 35 : 1155 17 : 238 |
17 : 238 |
THE LOGIC; 1) 16 : 224, (16x16) = 256 - (16x2) = 224 2) 21 : 399, (21x21) = 441 - (21x2) = 399 3) 35 : 1155, (35x35) = 1225 - (35x2) = 1155 4) 17 : 238, (17x17) = 289 - (17x2) = 255 not 238 Thus, 17 : 238 is the odd one. |