## QA – Placement Quizzes | Mensuration 3D | Question 8

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 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 »

A sum of money is borrowed and paid back in two annual installments of Rs. 882 each allowing 5% compound interest. The sum borrowed was:… Read More »

A total of 324 coins of 20 paise and 25 paise make a sum of Rs 71. The number of 25-paise coins is: (A) 104… Read More »

A zoo has some peacocks and some horses. If the number of heads be 48 and the number of feet be 140, then the number… Read More »

Find the value of (1-1/3)(1-1/4)(1-1/5)…(1-1/100). (A) 1/10 (B) 1/50 (C) 1/20 (D) 1/100 Answer: (B) Explanation: We have (1-1/3)(1-1/4)(1-1/5)…(1-1/100) = (2/3)(3/4)(4/5)…(99/100) = 2/100 = 1/50.Quiz… Read More »