Question
A man bought 5 articles K, L, M, N, O at Rs. 620 each.
Selling prices of K,L, M,N and O were x, x+ 20, x +25, x +75, x +80 respectively. Overall profit percent by selling all the articles was 25 %. Find the approximate profit percent by selling article O.Solution
CP of 5 articles = 620 × 5 = 3100 SP of 5 articles = 5x + 200 ATQ: 3100 × 125/100 = 5x + 200 Dividing whole equation by 5, we get => 3100 × 25/100 = x + 40 => 775 – 40 = x => 735 = x SP of article O = 735 + 80 = 815 Req % = 195/620 × 100 = 31.45%
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