Question

The sum of two numbers is 525.
Choose the correct pair with the possible numbers.

• A. 400 + 50
• B. 310 + 105
• C. 300 + 225
• D. 200 + 245

Answer 1

The correct option is C 300 + 225

To select the correct pair whose sum is 525, let us find out the sum for all the given options using the place value chart.

In the first option, the given pair is 405 + 50.
On adding, we get:

The sum is 455, which is not equal to 525.
∴ First option is not correct.

In the second option, given pair is 310 + 105.
On adding, we get:

The sum is 415, which is not equal to 525.
∴ Second option is not correct.

In the third option, given pair is 300 + 225.
On adding, we get:

The sum is 525, which is equal to 525.
∴ Third option is correct.

For the fourth option now, given pair is 200 + 245.
On adding, we get:

The sum is 445, which is not equal to 525.
∴ Fourth option is also not correct.

Hence, only 300 + 225 is the correct pair from the given options which give the sum 525.