Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Ratio and Proportion Componendo or Dividendo
If (m + n) : (m - n) = 7 : 3 then the value of (m2 - n2) : (m2 + n2) will be ____.
1
21 : 29
2
29 : 21
3
21 : 11
4
More than one of the above.
5
None of the above