Independent of gender, the ten students stand one behind the other in a straight line with the heaviest person first and the lightest person last. Which of these is an invalid representation of a group of three consecutively standing students?
Explanation:
Consider the solution to the earlier questions. Arranged from heaviest to lightest, the sequence of boys and girls is: Boy: 69 Boy: 67 Boy: 62 Girl: 60 Boy: 58 Girl: 57 Girl: 52 Girl: 49 Girl: 45 Hence, there can be: 1) Two boys followed by a girl (59-54-52) 2) One boy between two girls (52-50-49) 4) Three girls one behind the other (49-44-41 or 44-41-37) The combination in option (c) (two girls followed by a boy) is not possible. Hence, option (c).
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