9. By selling 144 notebooks, Kailash lost the S.P. of 6 notebooks. Find his loss per cent. Had he purchased
them for 7200, what would have been the S.P. of one notebook?
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Answer: rs 48
Step-by-step explanation:Answer:
Loss %= {Loss notebook /total notebook} × 100
= (6/144)×100
= 4.16 % = 4% (approx)
C.P. of 144 notebook = ₹7200
C.P. of 1 notebook = ₹7200/144 = ₹ 50
S.P. of 1 notebook
= {(100 - loss%)/100} × C.P. of 1 notebook
= {(100 - 4)/100} × ₹50
= (96/100) × ₹50
= ₹48.
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