What is the greatest common factor of 2³ × 7² and 2⁵ × 3¹?

Direction: Study the following table carefully and answer the given questions. Table shows the of passed students in four schools and ratio between passed boys and girls among them. The ratio between failed boys and girls is reverse of passed ratio between them.

If the difference between the failed boys and girls is 25 in school S, then find the ratio between passed and failed students in School S?

Speed of train B is 20% more than speed of train A and length of train A and B is 720 meters and 600 meters respectively. If both trains running in opposite direction cross each other in 24 second, then find speed of trains B (in km/hr)?

If $$ {9^{x}={9\over {3^{x}}}}$$ then find the value of x.

In a town, 60% of the total voters is male and the rest are females. If 60% of the males are literate and 70% of the females are literate, then by what percent is the number of literate males more than that of illiterate females?

A sum of money doubles itself at compound interest in 15 years. In how many years it  will become eight times?

What annual instalment will discharge a debt of ₹ 6450 due in 4 years at 5% simple interest?

Directions :- Refer the graph and answer the given questions.
 The following line graph shows the number of products sold by company A and B during six years.

The number of products sold by B increased by what percent from 2011 and 2014 ?