solve what fraction she spend on sharpner
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2/3 +1/12 +1/5
=(40 +5 +12)/60
=57/60
rest = 1 - 57/60
= (60-57)/60
= 3/60
= 1/20
So money spent on sharpeners is 300 ×1/20 = 15 rupees.
find out each value separately
money Spent on books = 300 ×2/3 =200
Erasers = 300×1/12= 25
Pencil. = 300 × 1/5= 60
Rest amount = 300-(200+25+60)
=300 -285
=15
So She spent 15 rupees on Sharpeners.
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