Paul started his hobby of bird-watching this year.
The average number of birds he spotted in the first four days was 10.
He observed the birds for ten more days.
When the number of birds spotted in the ten days was added, the average number of birds spotted in the fourteen days became 20.
What was the average number of birds he spotted in the ten days?
The average number of birds he spotted in the first four days was 10.
He observed the birds for ten more days.
When the number of birds spotted in the ten days was added, the average number of birds spotted in the fourteen days became 20.
What was the average number of birds he spotted in the ten days?
Jawaban:
the average number of birds he spotted in the ten days was 10
Penjelasan dengan langkah-langkah:
The average number of birds he spotted in the first four days was 10.
the average number of birds spotted in the fourteen days became 20.
So, the average number of birds he spotted in the ten days=the average number of birds spotted in the fourteen days-The average number of birds he spotted in the first four days
=20-10=10
semoga membantu^_^