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Let cost price of the article is Rs. 100x So, 1.2 × 100x = 0.7 × (100x + 850) Or, 112x = 70x + 595 Or, 50x = 595 Or, x = 11.9 Cost price of the article = 100 × 11.9 = Rs. 1190
32, 50, 82, 124, 180, 252
139, 152, 172, 205, 249, 304
147 490 707 831 895 922 930
...9 17 53 103 310 619
...43, 42, 41, 39, 33, 10
11 29 45 59 70 81
...9 17 53 103 310 619
...