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7 8 9 6 1 5 4 3 2 1 2 3 4 5 6 7 8 9 Required sum = 5 + 6 = 11
A shopkeeper bought two article A&B for a total of rupees 3500. He marked Article A 140% above its cost price and sold it after giving a discount of 20%...
Pipe ‘A’ and pipe ‘B’ can fill a cistern in 20 minutes and 15 minutes respectively. Pipe ‘C’ alone can empty the cistern in 12 minutes. If a...
The mean of a distribution is 25 and the standard deviation is 5. What is the value of coefficient variation?
What will be the 11th term of the arithmetic progression 3, 8, 13, _____?
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...
If A and B are two sets such that the number of elements in A is 20, a number of elements in B is 18 and the number of elements in both A and B is 10, f...
What is the sum of the first 14 terms of an arithmetic progression if the first term is -21 and last term is 40?
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 ...
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...
Find the standard deviation of the following data (rounded of the two decimal places).
5,3,4,7