Question

A display has a resolution of \(2560 \times 1440\). What is the total number of pixels?

• A. \(2073600\)
• B. \(3686400\)
• C. \(1440000\)
• D. \(2560000\)

Hint:

To find total pixels in a display, simply multiply horizontal pixels by vertical pixels.

Answer 1

The Correct Option is B

Concept:
Resolution of a display tells us the number of pixels present horizontally and vertically. If a display has resolution: \[ \text{Width} \times \text{Height} \] then total number of pixels is: \[ \text{Total pixels} = \text{Width} \times \text{Height} \]

Step 1: Identify the given resolution. \[ 2560 \times 1440 \] Here, \[ \text{Width} = 2560 \] \[ \text{Height} = 1440 \]

Step 2: Use the formula. \[ \text{Total pixels} = 2560 \times 1440 \]

Step 3: Multiply the values. \[ 2560 \times 1440 = 3686400 \] Therefore, the total number of pixels is: \[ 3686400 \] \[ \therefore \text{Correct Answer is (B)} \]