The volume of a solid cube is 2197 m3. If whole cube is to be painted at a rate of Rs. 8 per m2, then what will be the cost of painting the cube?
Let the edge length of the cube = ‘a’ metres Then, volume of the cube = a3 = 2197 So, a = 2197(1/3) = 13 So, total surface area of the cube = 6a2 = 6 × 132 = 1014 m2 So, cost of painting the cube = 1014 × 8 = Rs. 8112
The downstream speed of a boat is 6 km/hr more than its upstream speed and the ratio of the speed of the boat in still water to the speed of the stream ...
Select the set in which the numbers are related in the same way as are the numbers of the following set.
(4, 14, 44)
How many such digits are there in the number’ 322476587’ each of which is as far away from beginning of the number as when the digits are arrange...
Select the option in which the numbers are related in the same way as are the numbers in the given set.
(109, 114, 139)
If digits of each number are added and sum is multiplied by 2, and the resultants are arranged in descending order, which number will be at last position?
If all the digits of each number are added, the sum of which number will be the largest?
Select the option in which the numbers are related in the same way as are the numbers of the following set.
(18, 6, 36)
64 8 5
420 14 10
What the difference between the resultant of the first row and the second row?
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m 13 8
If ‘m’ is the resultant of the first row, what the resultant of the second row?
...
