Teaching BPSC बिहार प्राथमिक (1 to 5) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Simplification Surds and Indices
If 21168 = 2a × 3b × 7c, where a, b and c are natural numbers, then what is the value of (4a - 5b + c)?
1
0
2
1
3
2
4
More than one of the above
5
None of the above