Question
A tank 60m long, 45m broad and 18m deep is dug in a
ground 2000 m long and 45m wide. By how much will the level of the field rise if earth dug out of the tank is evenly spread over the ground?Solution
Two different alloys contain steel and aluminum in the ratios of 11:4 and 2:13, respectively. In what proportion should these two alloys be combined to ...
Find the sum of geometric progression, 40, 20, 10, 5, …..
Find the standard deviation of the following data (rounded of the two decimal places).
5,3,4,7
Find the mode of the data: 2, 2, 3, 5, 15, 15, 15, 20, 21, 23, 25, 15, 23, 25.
What is the median of the following list of numbers: 5, 3, 6, 9, 11, 19,12,20, and 1?
The mode of the sample data = is 24 and the median = 80. Find the mean of this distribution
The marks obtained by 12 students out of a maximum of 30 in a test are given as 25, 28, 24, 22, 25, 18, 20, 22, 19, 23, 22, and 26. Find the sum of the ...
When the profit obtained by selling an item for Rs. 768 is the same as the loss suffered when the item is sold for Rs. 312. What ...
21 is divided into three parts which are in arithmetic progression (A.P.) in such a way that the sum of their square is 179. Find the smallest part.
18, 27, 54, 135, 400, 1417.5
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