A lunatic is not incompetent to testify, unless he is prevented by his lunacy from understanding the questions put to him and giving rational answers to them.
119 × 13 + 150/100 × 850 =?
144, 288, 96, 384, 76.8, ?
110, 119, ?, 193, 274, 395
150 - 10× ( 7 - 2)/4× 8 = ?
...12, 24, 46, 78, 120, ?
23, 27, 39, 59, ?, 123
117, 117, 121, 129, 141, ?
8, 24, 48, 80, ?, 168
50, 64, 80, 98, 118, ?
Choose the missing term.
R, U, X, A, D,?