For the following questions answer them individually
A dealer sells a machine having marked price as Rs 3840 at a discount of 20%. What is the selling price (in Rs) of the machine?
The average age of 120 members of a society is 60.7 years. By addition of 30 new members, the average age becomes 56.3 years. What is the average age (in years) of newly joined members?
The marked price of a shirt is Rs 1280. If the shirt is being sold for Rs 900, then what is the discount percentage?
If $$x-\frac{1}{3x}=\frac{1}{3}$$, the value of $$3(x-\frac{1}{3x})$$ is
The mean of 100 observations was calculated as 40. It was found later on that one of the observations was misread as 83 instead of 53. The correct mean is:
| # | Name | Overall Score |
|---|---|---|
| 1 | Balbir Singh | 5 |
| 2 | Bipradip Das | 5 |
| 3 | Shubham Kumar | 5 |
| 4 | Arnav Singh | 5 |
| 5 | suvam sinha | 5 |
| 6 | Sachin | 5 |
| 7 | Vikash Rajput | 5 |
| 8 | Mahendra | 5 |
| 9 | kanwar nissan singh | 5 |
| 10 | Sumit Kumar karn | 5 |
