287 x 287 + 269 x 269 - 2 x 287 x 269 = ? Options: A . &nbsp534 B . &nbsp446 C . &nbsp354 D . &nbsp324

Answer: Option D Given Exp. = a 2 + b 2 - 2 ab , where a = 287 and b = 269 = ( a - b ) 2 = (287 - 269) 2 = (18 2 ) = 324

28

Question

287 x 287 + 269 x 269 - 2 x 287 x 269 = ?

Options:

A . 534

B . 446

C . 354

D . 324

Answer: Option D

Given Exp.
= a² + b² - 2ab, where a = 287 and b = 269
= (a - b)² = (287 - 269)²
= (18²)
= 324

Was this answer helpful ?

Next Question

Question 1. `(854 x 854 x 854 - 276 x 276 x 276)/(854 x 854 + 854 x 276 + ....

Question 2. What is the sum of even numbers between 9 and 53? ....

Question 3. (935421 x 625) = ? ....

Question 4. (22 + 42 + 62 + ... + 202) = ? ....

Question 5. 13 + 23 + 33 + ... + 63 = ? ....

Question 6. How many of the following numbers are divisible by 132 ? 264,....

Question 7. On multiplying a number by 7, the product ....

Question 8. The largest 4 digit number exactly divisible by 88 is: ....

Question 9. A number was divided successively in order by 4, 5 and 6. The....

Question 10. What is the largest 5 digit number exactly divisible by 94? ....

Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)

Direction Sense Test Part 1 Reasoning (Hindi)

Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE

Cube & Cuboid Part 1 Reasoning (Hindi)

Data Interpretation (DI) Basic Concept Reasoning (Hindi)

Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)

Sail E0 free webinar Webinars

Real Numbers Part 7 Class 10 Maths

Real Numbers Part 1 Class 10 Maths

Polynomials Part 1 Class 10 Maths

Chapter 3.1 : Overview of Finance & Accounts Department Chapter 3 : Finance & Accounts SAIL E0 - GFM 2024

Chapter 2.1 : Overview Chapter 2 : Materials Management SAIL E0 - GFM 2024

Chapter 1.1 : Personnel Functions- An overview Chapter 1 : Personnel Management SAIL E0 - GFM 2024

GPOE / GPA Combined 1 Free CBT Mock Test SAIL E0 2024

CBT Mixed Test 1 GPOE/GPA SAIL E0 2024