Question

Each day people in a certain country purchase `4.9 xx 10^7` bananas. How many bananas are purchased in one​ year?

Answer 1

`approx 1.8 xx 10^10`

Explanation:

Bananas per day `= 4.9 xx 10^7`

Assuming these people can purchase bananas on every day of the year. (365 days)

Bananas per year `= 4.9 xx10^7 xx 365 = 1788.5 xx 10^7`

To maintain the original scientific format (`x.x xx 10^n`)

`1788.5 xx 10^7 approx 1.8 xx 10^(7+3) = 1.8 xx 10^10`

Bananas per year `approx 1.8 xx 10^10`