If  and , then the value of 

O is the circumcentre of . If , , then  is equal to

If discount of 10% is given on the marked price of a radio, the gain is 20%. If the discount is increased to 20%, the gain is

• 

• 5%

• 
• 

Study the chart and answer the questions.
The Income of a State Under different Heads is Given in the Following Pie-chart


If the total income in a year be ₹773 crore, then the income (in ₹ crore) from 'Income tax' and 'Excise duty' is

• 331.45

• 329.85

• 331.50

• 331.50

Study the chart and answer the questions.
The Income of a State Under Different Heads is Given in the Following Pie-chart

The central angle of the sector representing income tax is

106.

Study the chart and answer the questions.
The Income of a State Under Different Heads is Given in the Following Pie-chart

If the income from the market tax in a year be ₹ 165 crore, then the total income from other sources is (in ₹ crore)

• 345

• 365

• 335

• 335

The value of the following is:

• 2

• 

• 1

• 1

If  then the value of  is

A and B together can do a piece of work in 30 days. B and C together can do it in 20 days. A starts the work and work on it for 5 days, then B takes up and works for 15 days. Finally, C finishes the work in 18 days. The number of days in which C alone can do the work when doing it separately is

• 40

• 120

• 60

• 60

If the area of the base, height and volume of a right prism be  and 7200 cm³ respectively, then the value of P will be