Question
After selling 15 chairs, a furniture shop earns a profit
equivalent to the selling price of 3 tables. While selling 10 tables, the shop earns a profit equal to the selling price of 5 chairs. The numerical value of the Profit % is equal in both cases and the Cost price of a chair is one-third the cost price of a table. Find the ratio of the selling price of a chair to a table.Solution
ATQ, Let the cost price of a chair be 'c', then the cost price of a table is '3c' And the Selling price of the chair and the table be Sc and St respectively Now according to the Question, Cost price of 15 chair = 15c and the profit = 3St Profit % = (3St/15c) × 100 = (20St/c) % Cost price of 10 tables =30c and profit = 5Sc. Profit percentage = (5Sc/30c) × 100 = (50Sc/3c) % Since the profit percentages are equal: 
The ratio of the selling price of a chair to a table is 6:5.
For the ANOVA which of the following options is INCORRECT.
1.      Null hypothesis H0 : μ1 = μ2 = ... = μn
2.      F ...
For the distribution with unknown θ
We set the tes...
The grouped data for the observation are as follows.
Class :Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 2-4Â Â Â Â Â Â Â Â 4-6Â Â Â Â Â Â Â Â Â 6-8<...
If ten coins are tossed simultaneously, then the probability of getting at most I head is:
If mean and mode of the distribution is 32 and 21, then the distribution:
For making frequency distribution, the number of classes used depends upon:
Which one is parameter from population?
The mean and median of the distribution are 10 and 11 respectively, then the mode equals to
The deseasonalised time - series data will have only trend (T), cyclical (C) and irregular (I) components and is expressed as:
If xi | fi , i = 1,2,...n is a frequency distribution with standard deviation 15 and mean 30, the coefficient of variation will be equal to:
Relevant for Exams:
