Question

Q30. Find the centre of the circle passing through the points (6, -6), (3, -7) and (3, 3).



Q31. If Sin A = 12/13 and (2 Sin A – k Cos A) / (4 Sin A – 9 Cos A) = 3. Find the value of k



Q32. A tree is broken by the wind. The top stuck the ground at an angle of 30° and at a distance

of 20 m from the root, then the height of the whole tree is



Q33. If the radius of a circle is decreased by 30%.How much percent its area decreased?



Q34. A farmer connects a pipe of internal diameter 40 cm from a canal into a cylindrical tank in

her field, which is 10 m in radius and 5 m deep. If water flows through the pipe at the rate of 5

km/h, then in how much time will the tank be filled



Q35. Find median of the below data :

Class

interval

0 -10 10 - 20 20 - 30 30 - 40 40 - 50 50 - 60 60 - 70

Frequency 12 15 08 12 13 08 12



Q36. A container shaped like a right circular cylinder having diameter 36 cm and height 12 cm is

full of ice cream. The ice cream is to be filled into cones of height 6 cm and diameter 6 cm,

having a hemispherical shape on the top Find the number of such cones which can be filled with ice cream ​

Answer 1

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