A student of class X took same number of trials for relearning a lesson. The saving score of student is ……

(a) 100
(b) 25
(c) 50
(d) 0

Anurag Mishra Professor Asked on 23rd May 2016 in Child Development.
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    Answer: (d) 0 

    Anurag Mishra Professor Answered on 31st May 2016.
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