In the figure given below the square represents switches, the triangle represents tube lights and the circle represents bulbs. The number in each area represents the number of items in that area.
Which of the following statement is NOT correct?
I. Number of switches which are tube lights are 5.
II. Total number of bulb are 19.
Show answer & explanation
Correct answer: B
Explanation
I. The number of switches with tubelights is 5.
'Switches with tubelights' would be the numbers that are inside both the square (switches) and the triangle (tubelights).
The numbers 1 and 4 are in the common area of the square and triangle.
Total number = 1 + 4 = 5
Hence, this statement is correct.
II. The total number of bulbs is 19.
'Total number of bulbs' means the sum of all the numbers inside the circle.
The numbers inside the circle are: 8, 4, 3, and 2.
Total number = 8 + 4 + 3 + 2 = 17
The statement gives the number 19, while the calculation gives 17.
Hence, this statement is incorrect.
Correct answer = Only II