Select the number which when added to itself 13 times, gives 112.

The correct answer is Option (2) → 8

Adding a number to itself 13 times means the number is there once and is then added 13 more times, so the total is 14 times the number, not 13 times (112 is not a multiple of 13).

• 14 times the number gives 112: \(14x=112\)

• So the number is \(112\div14=8\)