Question

By selling 45 kg sugar, a shopkeeper gains equal to SP of 5 kg sugar. Find his gain%

Answer 1

Let the SP of 1 kg be 100

So, SP of 5 kg be 500
ATQ SP of 5 kg is profit
So, profit is equal to 500

Now,
SP of 45 kg is equal to 4500

So, CP is equal to SP - profit
is equal to 4500-500
is equal to 4000
Now,
P% is equal to P/CP*100
is equal to 500/4000*100
is equal to 12.5%