Question
By Selling 3 dozen oranges for rupees 405, a trader
loses 25%. How many oranges should he sell for 288 if he needs to earn a profit of 20% in the transaction.Solution

9 28 83 250 ? 2248
What will come in place of the question mark (?) in the following series?
28, 45, 75, 118, 174, ?What will come in place of the question mark (?) in the following series?
15, 16, 25, 50, 99, 180, ?
What will come in place of the question mark (?) in the following series?
110, 120, ?, 146, 162, 180
25          54          ?             228        460        924
...- What will come in place of (?), in the given number series.
100, 95, 85, 70, ?, 25 What will come in place of the question mark (?) in the following series?
10, 135, ?, 226, 234, 235
612, 487,?, 396, 388, 387
What will come in place of the question mark (?) in the following series?
1515, 184, ?, 455, 967, 624
17, 19, 41, 127, 513, ?Â