For the following questions answer them individually
Angle subtended by a chord OP on the circumference of a circle is 90 degree. If diameter of the circle is 44 cm, then what will be the length of chord OP?
If $$\cos \theta + \sin \theta = \surd{2}$$, then what is the value of $$\sec \theta \cosec \theta$$?
The marked price of a trouser and a jacket is in the ratio of 1 : 3. The shopkeeper gives 20 percent discount on the trouser. If the total discount offered on both of them together is 30 percent. Then what is the discount percentage offered on the jacket?
The line chart given below shows the GDP of two countries L and M in five different years.
J1 = The value of average GDP of countries L and M in year Y1.
J2 = The value of average GDP of countries L and M in year Y4.
What is the value of (J1/12)?
The radii of two concentric circles are 34 cm and 50 cm. A and D are the points on larger circle and B and C are points on smaller circle. If ABCD is a straight line and BC = 32 cm, then what is the length of AD?
x, y and z are 3 values, such that x - y = 12, y + z = 17 and z + x = 19. What is the average of x, y and z?
What amount a man would have received on a principal of Rs.7.500 after two years at simple interest at the rate of 7 per cent per annum?
In $$\triangle$$XYZ, points P, Q and R are points on the sides XY, YZ and XZ respectively $$\angle$$YXZ = 50 degree, XR = PR, ZR = QR and $$\angle$$RQZ = 80 degree. What is the value of $$\angle$$PRQ?
Distance of a chord JK from the centre is 7 cm. If diameter of this circle is 50 cm, then what will be length of this chord?