Answer: 1008 letters
Step-by-step explanation:
From the question, last Monday, a local mail carriers delivered 1,344 pieces of mail and of all the deliveries they made, 1 / 6 were magazines, 1 / 12 were packages, and the rest were letters. The fraction of letters will be:
= 1 - (1/6 + 1/12)
= 1 - (3/12)
= 9/12 = 3/4
We will now multiply 3/4 by 1344 to get the number of letters delivered.
= 3/4 × 1344
= 1008 letters
Okay, so let's find the average
People with 92: 18(92)
People with 84: 12(84)
1656 + 1008 = 2664
So then we divide by 30
2664 / 30: 88.8
The average is a score of 88.8
It will take you 30 hours to build a perfect fort
