Find the value of 22.2 × 22.2 + 124.32 + 2.8 × 2.8.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 625.
22.2 × 22.2 + 124.32 + 2.8 × 2.8
⇒ (22.2)2 + (2.8)2 + 2 × 22.2 × 2.8
⇒ (22.2 + 2.8)2
⇒ (25)2 = 625
SSC Selection Post - Matriculation Level 2022 - 9 Feb 2022 - Shift 1 • Quantitative Aptitude • Q67
Find the value of 22.2 × 22.2 + 124.32 + 2.8 × 2.8.
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 625.
22.2 × 22.2 + 124.32 + 2.8 × 2.8
⇒ (22.2)2 + (2.8)2 + 2 × 22.2 × 2.8
⇒ (22.2 + 2.8)2
⇒ (25)2 = 625