A salesman’s terms were changed from a flat commission of 9% on all his sales to a fixed salary of Rs. 4000 plus 4% commission on all sales exceeding Rs. 15000. If his remuneration as per the new scheme was Rs. 1000 more than by the first scheme, what were his sales worth?
Let his total sales be ‘x’. Then, 4000 + (x - 15000) * 4/100 = 9x/100 + 1000 => 400000 + 4x – 60000 = 9x + 100000 => 5x = 240000 => x = 48000
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