A person bought some articles at the rate of 5 per rupee and the same number at the rate of 4 per rupee. he mixed both the types and sold at the rate of 9 for 2 rupees. in this business, he suffered a loss of rs 3. the total number of articles bought by him was
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C.P of 1st type article ( 5 nos.) = 1Re.
C.P of 1 number = 1/5 Re.
C.P of 2nd type article (4 nos.) = 1 Re.
C.P of 1 number = 1/4 Re.
S.P of 9 articles = Rs. 2
S.P of 1 article = Rs. 2/9
Total C.P (2 numbers) = 1/5 + 1/4 = 9/20 Rs.
S.P of 2 articles = 2* 2/9 = 4/9 Rs.
Loss on 2 numbers = C.P - S.P = 9/20 - 4/9 = 81-80/180 = 1/180 [lcm = 180]
Given, he suffered a loss of '3 Rs.'
1/180 Rs=== 2 articles
3 Rs.====== X articles
X = 3*2*180 = 1080 articles
Hope this helps
C.P of 1 number = 1/5 Re.
C.P of 2nd type article (4 nos.) = 1 Re.
C.P of 1 number = 1/4 Re.
S.P of 9 articles = Rs. 2
S.P of 1 article = Rs. 2/9
Total C.P (2 numbers) = 1/5 + 1/4 = 9/20 Rs.
S.P of 2 articles = 2* 2/9 = 4/9 Rs.
Loss on 2 numbers = C.P - S.P = 9/20 - 4/9 = 81-80/180 = 1/180 [lcm = 180]
Given, he suffered a loss of '3 Rs.'
1/180 Rs=== 2 articles
3 Rs.====== X articles
X = 3*2*180 = 1080 articles
Hope this helps
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