Question

A large poultry farm produced 6,452,148 eggs one year, 7,026,075 the next year, and 8,121,236 eggs in the year after that. Find the total number of eggs produced during those three years.

• A. $21,599,359$
• B. $21,599,459$
• C. $21,600,459$
• D. $21,700,459$

Answer 1

The correct option is B $21,599,459$

Total number of eggs produced in three year = Sum of the eggs produced in three individual years.

Total number of eggs produced $=6,452,148+7,026,075+8,121,236$

Aligning the digits of all the numbers according to their place value is depicted in figure below,


For adding these numbers we need to add the like terms i.e. digits at ones place will be added together, digits at tens place will be added together and so on.

So,

As, adding ones place digits we get "19 Ones".

But, $19$ Ones $=10$ Ones $+9$ Ones.

$10$ Ones $+9$ Ones $=1$ Tens $+9$ Ones.

So, we will keep the digit $9$ at Ones palce and give $1$ as a carry to digit at Tens place.

Therefore,


Similarly we will do addition for all places as depicted in figure below,


So, $6,452,148+7,026,075+8,121,236=21,599,459$.

Therefore, total eggs produced in these three years $=21,599,459.$