For the following questions answer them individually
Chords PQ and RS of a circle extended externally intersect at point T. Length of the segment PT, if lengths of QT, RT and ST are 9 cm, 18 cm and 6 cm respectively, is
If a + b = 11 and $$a^2 + b^2$$ = 61, then value of ab is
Rakesh goes on a trip on his motor-cycle and rides for 368 kms. If he rides for 5 hours at a speed of 49 km/hr, at what speed he travels for the remaining 3 hours of the journey?
What is the total surface area (in sq cm) of a hollow cylinder open at both ends, if its length is 22 cm, external radius is 7 cm and thickness is 1 cm? (Take π = 22/7)
What is the distance between the points (4,7) and (-1,-5)?
At 22% discount, the selling price of a Refrigerator is Rs 26000, what is the selling price if the discount is 40%?
Divide 20 into two parts such that the sum of the square of the parts is 232. What is the value of the two parts?
What will be the equation of the perpendicular bisector of segment joining the points (5,-3) and (0,2)?
