Question

Find the value of N in the following addition.

$95N7+1085\underset{–}{}10N52\underset{–}{}$

• A. 7
• B. 8
• C. 6
• D. 9

Answer 1

The correct option is C

6

Adding the ones place column,
7 + 5 = 12, writing 2 and carrying 1 to tens place column.

Now, ones digit of (1(carry) + N + 8) = 5

$\Rightarrow$ N can take the value 6 which gives,
N + 9 = 6 + 9 = 15
(5 in tens place of the sum and 1 carried over to thousands place column)

Now, consider thousands place column,
1 (carry) + 5 + 0 = 6 = N
Hence, verified that N = 6.

$9567+1085\underset{–}{}10652\underset{–}{}$