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Let the original cost price of the article be Rs. ‘x’ Therefore, original selling price of article = Rs. 1.2x New cost price of the article = Rs. 0.8x New selling price of the article = 0.75 × 0.8x = Rs. 0.6x Therefore, 1.2x – 0.6x = 300 Or, x = 300/0.6 = 500
15, 120, 840, 5040, ?, 100800
11 22.5 47 102 236 ?
...What will come in place of the question mark (?) in the following series?
2.5, 6.5, 18.5, 54.5, 162.5, 486.5, ?
140, 146, 158, 176, ?, 230
17 18 14 ? 7 32
...10, 10, 30, 150, ?, 9450
17, 19, 41, 127, 513, ?
116, 118, 124, 136, 156, ?
-1, 5, 23, 59, ?
84, 97, ?, 162, 214, 279