Question
Mohan sold an article for Rs. 15,000. Had he offered a
discount of 10% on the selling price, he would have earned a profit of 8%. What is the cost price?Solution
Selling Price = 15000 After Discount = 15000 – 10% of 15000 = 13500 now 8% = 2/25 Selling Price = 25 + 2 units = 27 units = 13500 1 unit = 500 25 unit = 500 × 25 = 12500
60   61    57   66    ?      75    39
...15   8   9   15   32    ?    250.5
What will come in place of the question mark (?) in the following series?
4000, ?, 320, 192, 153.6, 153.6
- What will come in place of the question mark (?) in the following series?
121, 115, 102, 82, 55, ? 10Â Â Â 11Â Â Â Â 12Â Â Â Â 20Â Â Â Â 24Â Â Â Â ?
23Â Â Â Â 40Â Â Â Â Â Â 67 Â Â Â Â Â Â 104Â Â Â Â Â Â ? Â Â Â Â Â Â 208
...64, 65, 73, 100, ?, 289
12, 19, 33, ?, 117
312, 302, 282, ?, 212, 162
252, 235, 220, 207, 196, ?