profit loss questions who will answer this i will thank them mark as brainliest ☺️ and follow them
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8. 20%
Step-by-step explanation:
8.cp = x
sp = 4/5 of x
= 4x/5
loss = x - 4x/5
= 5x/5 - 4x/5
= x/5
loss% = loss/cp × 100
= x/5 ÷ x × 100
= x/5 × 1/x × 100
= 1/5 × 100
= 100/5
= 20%
so loss is 20%.
9. sp=x
cp=4x/5
sp is more than cp, so it's a profit.
profit=sp-cp
=(5x-4x)/5
=x/5
profit%= x/5 × 5/4x × 100
= 1/4×100
= 100÷4
= 25%
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