The marks of 60 students of a college are shown by the following histogram. How many students have marks between 10 and 20? (Figure: histogram — marks 0-5: 5, 5-10: 10, 10-15: 20, 15-20: 15, 20-25: 10 students)

In an examination, the distribution of marks obtained by 30 students is given in the following table: Marks: 10–25 | 25–40 | 40–55 | 55–70 | 70–85 | 85–100 No. of Students: 2 | 3 | 7 | 6 | 6 | 6 The…

How many numbers between 200 and 600 are divisible by 4, 5 and 6?

Consider the following numbers : 1. 437 2. 797 3. 1073 How many of the above numbers are prime ?

How many numbers between 100 and 500 are divisible by 4, 5 and 6?

Consider the following statements : 1. n³ - n is divisible by 6 2. n⁵ - n is divisible by 5 3. n⁵ - 5n³ + 4n is divisible by 120 Which of the statements given above are correct ?