The perimeter of a semi-circle is 25.7 cm. What is its diameter (in cm)? (π = 3.14)

Direction: Study the given pie chart carefully and answer the following questions accordingly. Given pie chart shows the percentage of players taking part in six different games in an event.

Total number of Players = 1800

What is the difference between the total number of players taking part in Badminton and Boxing together and the total number of players taking part in Golf and Tennis together?

If 9x² + y² = 37 and xy = 2, x, y>0, then the value of (27x³+ y³) is:

If a³ – b³ – c³ – 3abc = 0, then 

O, G, I and H are respectively the circumcentre, centroid, incentre and orthocentre of an equilateral triangle. Which of these points are identical?

P = 12xy – 10y² – 18x²,

Q = 14x² + 12y² + 9xy, and

R = 5y² – x² + xy

then (P + Q) – R =

In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer.

I. x² - 25x + 156 = 0

II. y²- 20y + 96 = 0

What approximate value should come in the place of question mark (?) in the following question?

1/3 of 785.99 – 11/8 of 1031.99 = ? – 13/4 of 527.98