Question
A cylindrical water tank has a radius of 7 cm and a height of 10 cm. What is its volume? (Use \(\pi = \tfrac{22}{7}\))
This question was previously asked in
RRB NTPC 2025 Under Graduate CBT 1 Question Paper PDF (20-Jun-2026) (Shift 3)
The correct answer is
1540 cm3
Volume of a cylinder: \(V=\pi r^2h\), with r=7 cm and h=10 cm.
Using \(\pi=\tfrac{22}{7}\): \(V=\tfrac{22}{7}\times49\times10 = 22\times7\times10 = 1540\) cm3.
Hence, the volume of the cylindrical tank is 1540 cm3.
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