Quantitative Aptitude
The table given below shows the cost price and selling of four different articles.
| Articles | Cost price | Selling price |
| J | 650 | 750 |
| K | 370 | 450 |
| L | 450 | 650 |
| M | 590 | 650 |
What is the difference between the average selling price and avergae cost price of all the articles?
If tan (α + β) = a, tan(α - β) = b, then the value of tan 2α is :
\( \frac{a + b}{1 - ab} \)
\( \frac{a + b}{1 + ab} \)
\( \frac{a - b}{1 + ab} \)
\( \frac{a - b}{1 - ab} \)
The pie chart given below shows the number of boys in 8 schools.The total number of boys in all these 8 schools is 5000.Number of boys in a particular school is shown as a percent of total number of boys in all these 8 schools.
What is the ratio of total number of boys in B, D and E to the total number of boys in A, C and F?

In the given figure, if KI = IT and EK = ET, then ∠TEI = _______
The pie chart given below shows the number of cars sold by 8 different companies. The total number of cars sold by these 8 companies are 5,000. Number of cars sold by a particular company is shown as a percent of total number of cars sold by all these 8 companies.
What is the ratio of total central angle formed by sector R and S to the total central angle formed by sector U and V?