Explanation
The first person shook hands with the 11 remaining people, and the second person also shook hands with 11 people, but we count 10, as the handshake with the first person has already been counted. Then add 9 for the third person, and 8 for the fourth one & proceeding in this fashion we get: 11 + 10 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 66. Hence 66 handshakes took place before & 66 after the meeting, for a total of 132
Explanation
According to the above stated passage only the argument " The nearsightedness in the children is caused by the .....visual stress required by reading and other class work." will be true
Explanation
Four days before Monday is Thursday, simply because four days after Thursday is Monday. Besides, day after the day after tomorrow is Thursday only if present day is Monday.
Explanation
6,12,1,13,5 each number in the break up signifies the corresponding letter in the alphabet. (viz. 6->f, 12->l...etc.)
Similarly 2,12,15,1,20 which signifies bloat.
Explanation
The series is adbc acbd abcd dcba dbca cbda.
Thus, the letters equidistant from the beginning and the end of the series are the same.
Explanation
Pattern is +5, +7, +9, +11
So next number will be +13
33+13 = 46
Explanation
The first letter of each term is moved three steps forward and the last letter is moved two steps backward to obtain the corresponding letters of the next term.
The numbers follow the sequence x 2 + 1, x 2 + 2, x 2 + 3, x 2 + 4.
So, 10 is wrong and must be replaced by (4 x 2 + 1) i.e. 9.
