The following histogram shows the marks scored by 40 students in a test of 30 marks. A student has to score a minimum of 10 marks to pass the test. How many students have scored less than two-third of the total marks?

35 17 25 32

25

Two - third of marks = \(\frac{2}{3}\) × 30 = 20 Number of students scored less than 20 marks = 2 + 8 + 7 + 8 = 25