In a class test containing 15 questions 5 marks are given for every correct answer and (-1)marksfor every incorrect answer and o marks are given for question not attempted. Calculate Arushi score if she gave 7 correct and 6 incorrect answers?
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answer is 25
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As we know that
As we know thatSP=CP+gain
As we know thatSP=CP+gainGiven 6 times CP is equal to 5 times SP
As we know thatSP=CP+gainGiven 6 times CP is equal to 5 times SP⟹6CP=5SP
As we know thatSP=CP+gainGiven 6 times CP is equal to 5 times SP⟹6CP=5SP⟹6CP=5(CP+gain)
As we know thatSP=CP+gainGiven 6 times CP is equal to 5 times SP⟹6CP=5SP⟹6CP=5(CP+gain)⟹6CP=5CP+5gain
As we know thatSP=CP+gainGiven 6 times CP is equal to 5 times SP⟹6CP=5SP⟹6CP=5(CP+gain)⟹6CP=5CP+5gain⟹CP=5 gain
As we know thatSP=CP+gainGiven 6 times CP is equal to 5 times SP⟹6CP=5SP⟹6CP=5(CP+gain)⟹6CP=5CP+5gain⟹CP=5 gain⟹gain=51×CP=10020×CP
As we know thatSP=CP+gainGiven 6 times CP is equal to 5 times SP⟹6CP=5SP⟹6CP=5(CP+gain)⟹6CP=5CP+5gain⟹CP=5 gain⟹gain=51×CP=10020×CPGain percent is 20%
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