If the areas of two isosceles triangles are in the ratio of X² : Y², then the ratio of their corresponding heights is:

Directions : The following graph shows production (in thousands) of two types (P and Q) of vehicles by a factory over the years 2009 to 2014. Study the graph and answer the given questions. 

In how many of the given years, was the production of Type P vehicles of the company more than the average production of this type vehicles in the given years?  

Which of the following options has the greatest value?

The speed of a train is 108 km/h. The distance covered by the train in 11 seconds will be:

AB and CD are two parallel chords of a circle lying on the opposite side of the centre and the distance between them is 17cm. The length of AB and CD are 10 cm and 24 cm, respectively. The radius (in cm) of the circle is

A spherical metallic shell with 6 cm external radius weighs 6688 g. What is the thickness of the shell if the density of metal is 10.5 g per cm3? (Take л = 22/7)

The income of Aman is Rs. 30,000 per month and his expenditure is Rs. 20,000 per month. In the next month, his income increases by Rs. 10,000 per month, and expenditure increases to Rs. 25,000 per month. In the next month, his savings increases by what percent?

A divisor is 15 times the quotient and 3 times the remainder. If the remainder is 40, find the dividend.