Rohit scored 180 marks in the first test and 150 marks in the second test. The maximum marks in each test is 200. What is the decrease in his performance in percentage points? 20% (b) 15% 25% (d) 23%

Options

A. 0.2
B. 0.15
C. 0.25
D. 0.23

Answer

B

Explanation

Rahul's score in first test = 180
Rahul's score in second test = 150
Decrease in percentage points
` = ("Score in first test - Score in second test")/("Total score") xx 100`
`= (180-150)/(200) xx 100 = 15%`
Hence, the correct option is (b).