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Let the total number of pens be '100n'. Let the cost price of a pen be Rs. '10a' So, marked price of a pen = 10a X 1.4 = Rs. '14a' So, the cost price of all pens = 100n X 10a = Rs. '1000na' ATQ, Selling price of 70% of total number of pens = 0.7 X 100n X 14a = Rs. '980na' Selling price of remaining pens = 0.3 X 100n X 10a X 1.4a X 0.8 = Rs. '336na' Total selling price = 980na + 336na = Rs. '1316na' Therefore, required profit = (1316na - 1000na) ÷ 1000na X 100 = 31.6%
132, 130, 136, 126, 142, 110
15, 30, 30, 20, 10, 8
74, 79, 86.5, 101.5, 109, 124, 141.5
In each of the following giving number series, a wrong number is given. Find out the wrong number?
3023, 3132, 3246, 3356, 3471
72, 36, 54, 135, 470.5, 2126.25
Find the wrong number in given number series.
1960, 1943, 1930, 1915, 1904, 1895
225, 45, 450, 90, 900, 150, 1800
132, 130, 136, 126, 142, 110
13, 24, 69, 272, 1355, 8248
Find the wrong term in the given series below.
159, 160, 81, 244, 62, 318