RRB Junior Engineer / DMS / CMA 2019 · Question 3 of 3719
Mathematics - Mensuration
Circumference of a base of cylinder = 2 πr 2 πr = 44 2x (22/7) x r = 44 r = 44 x (7/44) r = 7 cm The curved surface area of a cylinder = 2 πrh 2 πrh = 440 2x (22/7) × 7 × h = 440 h = 440 x (1/44) h = 10 cm Volume of cylinder = πr²h Volume of cylinder = (22/7) × 7 × 7 × 10 = 1540 cm²
Source: RRB JE 2019 CBT-1 (24-May-2019 Shift-2) — ixambee compilation with answer key and solutions · reliable-secondary
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