Question
'A' purchased an article and sold it to 'B' at 10%
profit. 'B' marked it up by 20% above the price at which 'A' has purchased it and then sold it after giving a discount of Rs. 530. If 'B' suffered a loss of 15% in the transaction, then find the cost price of the article for 'A'.Solution
Let the cost price of the article for A be Rs. x Therefore, cost price of the article for B = Rs. 1.1x Marked price of the article = Rs. 1.25x Selling price of the article for B = 0.85 × 1.1x = Rs. 0.935x According to the question, 1.2x – 0.935x = 530 Or, x = 530/0.265 = 2000 Therefore, cost price of the article for A = Rs. 2000
147      138       120      93      ?      12
...Complete the series choosing the missing number.
8, 13, 20, ____, 40.
48Â Â Â Â 61 Â Â Â Â 76 Â Â Â Â 94Â Â Â Â 116 Â Â Â Â Â ?
? + (55)2 = (140)2 – (80)2 – 6278
0Â Â Â Â 2Â Â Â Â 10Â Â Â Â 24Â Â Â Â Â 68Â Â Â Â Â 120
...520Â Â 79Â Â 440Â Â 151Â Â Â 376Â Â Â ?
100Â Â Â 180Â Â Â 294Â Â Â 448Â Â Â 648Â Â Â ?
0Â Â Â Â Â Â 2 Â Â Â Â Â Â Â 6Â Â Â Â Â Â 12 Â Â Â Â Â Â 20Â Â Â Â Â Â Â ?
...6, 17, 21, 47, ?, 107
Select the number from among the given options that can replace the question mark (?) in the following series.
64, 60, 52, 40, ?, 4
