Railways
Sample Paper
RRB (Assistant Loco Pilot & Technician) Sample Test Paper-8
question_answer
A spherical lead ball of radius 10 cm is melted and small lead balls of radius 5 mm are made. The radius 5 mm are made. The total number of possible small lead balls is \[\left( take\,\,\pi =\frac{22}{7} \right)\].