Study the following graph carefully to answer the given questions

A is twice efficient as B and together they do the same work in as much time as T and V together. In how many days A can complete the work individually?

The following penalty diagram shows the 4 year exam results of the students of 10th standard. Study the diagram and answer the following questions.

Name the number of students who appeared in the 10th standard examination in the year 2002-

Piyush is running at the speed of 8 km/h and he stops for 5 minutes at the end of every third kilometer. How much time will Piyush take to cover a distance of 56 km?

X and Y are centres of circles of radius 9 cm. and 2 cm respectively XY=17 cm. Z is the centre of a circle of radius r cm which touches the above circles externally. Given that - ∠xzy = 90^o the value of r is -

If the area of a circle, inscribed in a equilateral triangle is 4 π cm², then what is the area of the triangle?

Two medians AD and BE of ∆ABC intersect G at right angle. If AD = 9 cm and BE = 6 cm, then the length of BD ( in cm ) is

If in a triangle, the orthocenter lies on vertex, then the triangle is 

64329 is divided by a certain number. While dividing, the numbers, 175, 114 and 213 appear as three successive remainders. The divisor is?