A merchant purchases a wrist watch for ₹ 450 and fixes its list price in such a way that after allowing a discount of 10%, he earns a profit of 20%. Then the list price of the watch is

Find the next term in the series.1329, 997, 725, 507, 337, ?

Directions : The graph shows the demand and production of different companies. Study the graph and answer the following questions.

The production of company A is approximately what percent of the demand of company C?

If the LCM of two numbers is 288 and their ratio is 4 : 9, then HCF of the numbers is : 

Average weight of 10 persons is 40 kg. A new person join the group and average weight of 11 persons becomes 42 kg. What will be the weight of new person?

On increasing the radius of circle by 1 cm, its area is increased by 44 cm² .The original radius of the circle is -

For what value of ‘y’, $$ {x^{2}+{1\over12}{x}+y^{2}}$$ is perfect square?

A person has to cover a distance of 160 km in 15 hours. If he covers $${4\over 5}$$ of the distance in $${2\over 3}$$  of the time, then what should be his speed (in km/h) to cover the remaining distance in the remaining time?