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Using the trapezium diagonal formula for equal diagonals: Diagonal^2 = (sum of squares of parallel sides) / 2 + height^2. Diagonal^2 = (10^2 + 20^2) / 2 + 8^2 = (100 + 400) / 2 + 64 = 250 + 64 = 314. Diagonal = √314 ≈ 17.73 cm.
The mean of 10 observations is 8. One more observation is added, and the new mean becomes 9. What is the value of the 11th observation?
The sum of total surface area of two cubes is 1248-centimeter square. If the product of the length of their edges is 96 centimeter square. Find the diff...
The cost of an item is 'A'. A shopkeeper increases the price by 'x'%, then applies a discount of 'd'% on the increased price. Aft...
What will be the mode of the following data?
13, 15, 31, 12, 27, 13, 27, 30, 27, 28 and 16
If the sum of n numbers in the GP 3, 6, 12, ... is 765 then n is?
A spent 36% and 25% of his monthly salary on food and rent, respectively. Of the remaining amount, he gave 25% and 40% to his mother and brother, respec...
The mean of a distribution is 25 and the standard deviation is 5. What is the value of coefficient variation?
The expenditure-to-savings ratio of an individual 'P' is 5:4. If the person's income rises by 25% and their savings increase by 3...
‘479385A267’ is ten-digit number which is divisible by 9, what is the value of ‘A’?
What will be the 11th term of the arithmetic progression 3, 8, 13, _____?