Question

Match the numbers with their squares.
Numbers Square
1. 16 a. 361
2. 23 b. 256
3. 19 c. 625
4. 25 d. 529

• A. 1-a 2-c 3-b 4-d
• B. 1-d 2-b 3-c 4-a
• C. 1-c 2-d 3-c 4-a
• D. 1-b 2-d 3-a 4-c

Answer 1

The correct option is D

1-b 2-d 3-a 4-c

$(16{)}^2=256$

$(19{)}^2=361$

$({23}^2=529$

$({25}^2=625$

Alternative method:

Arrange the numbers in ascending order.

$16<19<23<25$

So, the squares must be in ascending order, arrange the squares in ascending order.

$256<361<529<625$