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If 5 pens cost rupees 25
then what will be the cost of 100 pens
5    Rs 25
100  Rs x
1 5 1
Unitary method means you must find out the value of one...and then you can find out the value of thousands
like if 1 apple costs 40
10 would cost 10*40
the basic rule is also..that the categories should be kept same in columns
0 0 0
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