engineering recuitment Punjab SSSB Jr Draftsman Civil Mock Test 2021 Quantitative Aptitude Mensuration Solid Figures
Metallic spheres of radii 3 cm, 4 cm and unknown radius, respectively, are melted to form a single solid sphere. If the radius of the resulting sphere 9 cm. Then find the unknown radius of the sphere.
1
6 cm
2
8.6 cm
3
3 cm
4
4.3 cm