After selling 20 pens, a Shopkeeper earn a profit of the selling price of 6 books. While selling 20 books, a shopkeeper losses a selling price of 8 pens. The numerical value of the Profit and loss % is equal and the Cost price of pen is half the cost price of the book. Find the ratio of selling price of pen to book?
Let the cost price of a pen be x, then the cost price of a book is 2x And the Selling price of the pen and the book be a and b respectively Now according to the Question, Cost price of 20 pen = 20x and the profit = 6b Profit % = 6b/20x ×100 = 30b/x Similarly, Cost price of 20 books = 40x and the loss = 8a Loss % = 8a/40x × 100 = 20a/x Since the numerical values are equal ∴ 30b/x = 20a/x a/b = 3/2 The required ratio is 3:2
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If '$ means +', '# means –, '@ means ×' and '* means ÷', then what is the value of ' 16 $ 4 @ 5 # 72 * 8 ' ?
...Select the correct combination of mathematical signs that can sequentially replace ‘*’ sign and balance the equation given below.
54 * 2 * 4 ...
Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation.
65 * 45 * 25 * 5 * 35 * 60
If ‘–‘ means ‘addition’, ‘+’ means ‘subtraction’, ‘÷ ‘ means ‘multiplication‘ and ‘×’ means ‘division’ , then find t...
Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation.
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Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation:
76 *(5*8*4)*9*75
Select the correct combination of mathematical signs that can sequentially replace the sign * and make the equation correct.
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If 65 + 54 = 2, 71 + 62 = 10, then 73 + 83 = ?
Which two signs should be interchanged to make the following equation correct?
5 × 8 ÷ 2 – 4 = 30 + 6