A trader bought number of articles for ₹900. Five articles were found to be damaged. He sold remaining for ₹2 more than what he paid for it. He got a profit of ₹80 on whole transaction. Find number of articles.
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7
after solving this quadratic eqution
n=75
n=75
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Answer:
let the total no of aarticles be n
let the value of one article ne a
given:
na=900
a=900/n
(n-5)*(a+2)=980
na-5a+2n=990
900-5(900/n)+2n=990
2n-4500/n=90
n2-2250=45n
n2-45-2250=0
n(n-75)30(n-75)
(n+30) (n-75)
n=-30 n=75
sine the no of arrticles cannot be in negative
the answer is 75
Step-by-step explanation:
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