Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Mensuration Plane Figures
Two concentric circles with radii a cm. and (a + 2) cm. are drawn on a paper. The difference between their areas is 88 sq cm. Find the value of a.
1
5
2
6
3
1.5
4
More than one of the above
5
None of the above