For the following questions answer them individually
Ratio of the principal and the amount after 1 yr is 10 :12. Then the rate of interest per annum is
A solid cone of height 9 cm with diameter of its base 18 cm is cut out from a wooden solid sphere of radius 2 cm. The percentage of wood waste is
The length of the chord of a circle is 8cm and perpendicular distance between centre and the chord is 3cm .Then the radius of the circle is equal to
In $$\triangle$$ ABC $$\angle BAC$$ and AB= $$\frac{1}{2}BC$$Â .Then the measure of $$\angle ABC$$ is
The average of 5 numbers is 140.If one number is excluded then the average of remaining four numbers is 130,The excluded number is
what is the greatest number which will divide 110 and 128 leaving remainded in each case?