Question
Melting a metal ball of radius 3 units, 27 identical
dice and a ball of radius 1 units are made. What is the side of dice?Solution
The volume of the original metal ball =4/3 π (3)3 = 36 π cubic units The volume of the smaller ball =4/3 π (1)3 =4 π /3 cubic units The total volume of the metal used is equal to the volume of the original ball minus the volume of the smaller ball: Vtotal=36 π -4 π/3 = (108 π-4 π)/3 =104π/3 There are 27 identical dice, so the volume of each die is: = Total volume /27 = (104π/3)/27 =104π/81 = (104×3.14)/81 =4.03 cubic units The volume of a cube with side length a is: a3 =4.03 a =1.6 (Approx)
Find out the number of circles in the figure.
What would be the symbol on the opposite side of '*' if the given sheet is folded to form a cube?
Which figure should replace the question mark (?) if the following figure series were to be continued?
Select the option that represents the correct order of the given words as they would appear in an English dictionary.
1. Adequate
2. ...
Read the given statement(s) and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at varian...
What should come in place of the question mark (?) in the given series based on the English alphabetical order?
WKG UHC SEY QBU OYQ ?
Select the pair in which the numbers are related to each other in the same way as are the numbers in the given pairs. (NOTE: Operations should be perfor...
P, Q, R, S, T, U and V are seven students in a class. They are compared on the basis of their height. T is shorter than S but taller than U. U is taller...
Select the option that represents the letters that, when placed from left to right in the following blanks, will complete the letter-series.
G _ ...
Martha said to Linda, “Your mother’s father’s only son’s only sister is my father’s wife.”
How is Linda related to Martha?
...
Relevant for Exams:
