state gov Assam (অসম) ADRE Grade III Mock Test Series 2025 Quantitative Aptitude Simplification Surds and Indices

If 190512 = a4 × b5 × c2, where a, b and c are prime numbers, then what is the value of (12a + 3b - 5c) ?

1
0
2
-3
3
2
4
-2
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