A man can do a piece of work in 30 hours. If he works with his son then the same piece of work is finished in 20 hours. If the son works alone he can do the work in
Given that man can do a work in 30 hr In 1hr, work done by Man = 1/30 Along with Son, Man can do work in 20 hr In 1hr, work done by Man and Son = 1/20 => In 1hr, work done by son = 1/20 – 1/30 => work done by son in 1hr = 1/60 Therefore, son takes 60hr to complete the work.
In the figure P is a point which is 12 cm away from the centre of the circle O. A line drawn from P point cuts circle at point A and B respectively. If...
In Fig. if QT ⊥ PR, ∠ TQR = 40 ° and ∠ SPR = 30 ° , find x and y.
In the given figure, ABC is a right angled triangle. ∠ ABC = 90 0and ∠ ACB = 60 0. If the radius of the smaller circle is 2 cm...
In the given figure, two identical circles of radius 4 cm touch each other. A and B are the centres of the two circles. If RQ is a tangent to the circle...
In a ∆ ABC, the angle bisector of ∠A, ∠B, ∠C meet at point I, if ∠AIC is double of equilateral ∆ , then find the ∠ABC =? (in degree)
...PQRS is a cyclic quadrilateral of which PQ is the diameter. Diagonals PR and QS intersect at A. If SQR = 25°, then angle PAS measures
In an orchard, the ratio of the number of mango and lichi trees is 4:7, respectively. Also, there are few apple trees in the orchard which is 50% more t...
If the curved surface area of a cylinder is 126π cm² and its height is 14 cm. then, what is the volume of the cylinder?
What will be inradius of an equilateral triangle of side 14 cm?
