कैलकोसाइट किसका अयस्क है ?
The correct answer is A
[(√ 529) + 67] x 5 = ?
7/3 of 4/5 of 15/56 of ? = 83
187 ÷ 5 ÷ 0.4 = ? – 24 × 2.4
2.4 of 7.2 of 1/57.6 of 4200 = ?
24 × ?2 – 11 × 4 = 1900
2/5 of 3/4 of 7/9 of 7200 = ?
26 X √25 + 15 - 80% of 120 = ?2
134% of 1250 – 46% of 2120 = 4 × ?
72 + 122 - 25% of 600 = ?
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