Given, 2x – y/2 = 90 Or, 4x - y = 180 ....... (I) And, 3y – x/2 = 35 Or, (6y - x) = 70 ........ (II) On adding equation (I) with 4 × equation (II), we have; 4x + (-4x) - y + (24y) = 180 + 70 X 4 Or, 23y = 460 So, y = 20 So, 4x = 180 + 20 ..... (From equation I) Or, x = 200 ÷ 4 = 50 So, marked price of article 'A' = 4 × 50 = Rs. 200 And, percentage discount offered on article 'A' = 1.25y% = 1.25 × 20% = 25% So, discount offered = 200 × 0.25 = Rs. 50 So, profit earned on article 'A' = 50 × 1.4 = Rs. 70 So, profit earned on article 'D' = 70 + 50 = Rs. 120 Marked price of article 'D' = Rs. 400 Percentage discount offered = 2y% = 2 × 20 = 40% So, discount offered = 400 × 0.4 = Rs. 160 ATQ; (120/160) × 100 = {z - (x/2)} Or, 75 = z - 25 So, z = 100 For article 'A': Marked price of the article = Rs. 200 Discount offered = Rs. 50 Selling price = 200 - 50 = Rs. 150 Profit earned = Rs. 70 So, cost price = 150 - 70 = Rs. 80 
Average selling price of articles 'B' and 'C' together = (240 + 360) ÷ 2 = Rs. 300 Cost price of article 'A' = Rs. 80 So, required ratio = 300:80 = 15:4
What will come in place of the question mark (?) in the following series?
24, 25, 34, 59, 108, 189, ?
7, 7, 21, 105, ?, 6615
251, 130, 274, ?, 301, 76
5, 12, 24, 36, 52, ?
63 131 267 ? 1083 2171
160, 166, 178, 196, ?, 250
What will come in place of the question mark (?) in the following series?
5, 14, 41, 122, 365, 1094, ?
45 45.5 47 49.5 53 ?
...21, 28, 39, 52, ?, 88
The question below is based on the given series I. The series I satisfy a certain pattern, follow the same pattern in series II and answer the questions...
