Questions

Two chords AB and PQ of a circle intersect at D inside a circle. If AD = 4 cm, DB = 6 cm, QD = 3 cm, the length of PQ is equal to

The maximum number of common tangents that can be drawn to two disjoint circles is

A, B and C can complete a work in 20, 24 and 30 days respectively. All three of them starts together but after 4 days A leaves the job and B left the job 6days before the work was completed. C completed the remaining work alone. In how many days was the total work completed?

India’s first national sports university is to be set in which Indian state?

Which of the following has open vascular system?

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

He _____ to the problem of air pollution in his speech.

Which feature of a plant helps to distinguish a monocot from a dicot?

___ has naked seeds.