A solid piece of iron of dimensions 49 * 33 * 24 cm³ is molded into a sphere. The radius of the sphere is: (A)… Read More

# Tag Archives: QA – Placement Quizzes

A cylindrical vessel of radius 4 cm contains water. A solid sphere of radius 3 cm is lowered into the water until it is completely… Read More

A solid metallic spherical ball of diameter 6 cm is melted and recast into a cone with diameter of the base as 12 cm. The… Read More

A hollow sphere of internal and external diameters 4 cm and 8 cm respectively is melted into a cone of base diameter 8 cm. The… Read More

A hemisphere and a cone have equal bases. If their heights are also equal, then the ratio of their curved surfaces will be: (A) 1:2… Read More

A metallic hemisphere is melted and recast in the shape of a cone with the same base radius (R) as that of the hemisphere. If… Read More

A hemispherical bowl is filled to the brim with a beverage. The contents of the bowl are transferred into a cylindrical vessel whose radius is… Read More

The circumference of a circle is 100 cm. The side of a square inscribed in the circle is: (A) 50(2^0.5) (B) 100/Pi (C) [50(2^0.5)]/Pi (D)… Read More

The sides of a triangle are 6 cm, 11 cm and 15 cm. The radius of its in-circle is: (A) 3*(2)^0.5 (B) (4/5)*(2)^0.5 (C) (5/4)*(2)^0.5… Read More

An equilateral triangle, a square and a circle have equal perimeters. If T denotes the area of the triangle, S denotes the area of the… Read More

The area of the largest triangle that can be inscribed in a semi-circle of radius r, is:- (A) r^2 (B) 2r^2 (C) r^3 (D) 2r^3… Read More

If an area enclosed by a circle or a square or an equilateral triangle is the same, then the maximum perimeter is possessed by: (A)… Read More

If the radius of a circle is increased by 6%, then the area is increased by: (A) 14.96 (B) 11.24 (C) 13.64 (D) 12.36 Answer:… Read More

The difference between compound interest and simple interest on an amount of Rs 15,000 for 2 years is Rs 96. What is the rate of… Read More

The least number of complete years in which a sum of money put out at 20% compound interest will be more than doubled is: (A)… Read More