Question

Martin has $492$ data entry tasks to complete. He completed $331$ tasks before lunch. How many tasks are Left now ?

• A. $161$
• B. $823$
• C. $181$
• D. $151$

Answer 1

The correct option is A $161$

To obtain the tasks left now, we will subtract the tasks Martin has completed from the total tasks he had to do. Aligning both the numbers according to Place value (starting from the right) :

Placing like terms of the digits together i.e. digits at ones place will be placed together and digits at tens place to be placed together.


Subtract $1$ ones from $2$ ones, we get $1$ ones.

Similarly, subtract $3$ tens from $9$ tens, we get $6$ tens

Again we subtract $3$ hundreds from $4$ hundreds, we get $1$ hundred.

Thus, Martin has to complete $161$ more tasks.