15 person can complete a work in 60 days. If the number of persons is increased by 5, how many days earlier will the work get completed?

Find out the equation of line which is perpendicular to 2x - 3y = 5 and passes through point (1,1).

A solid metallic cylinder of base radius 5 cm and height 7 cm is melted to form cones, each of height 1 cm and base radius 1 mm. Find the number of cones?

The difference between the greatest and the least four-digit numbers that begins with 3 and ends with 5 is: 

If the ratio of speed of train, car and bus is 6:5:3 and bus cover a distance of 240 km. in 4 hours. What is the difference between speed of the train and car?

If A : B = 3 : 2, then (3A – 2B): (2A – B) is equal to

Comprehension: Read the following chart and answer the following questions.

Which day of the week recorded maximum train accident deaths? 

The average of five consecutive number is 26, then the multiple of the first and the last number is