Question

Julia wants to bring watermelon to the party. One serving of watermelon weigh about 150 grams. There will be 60 people at the picnic. How many kilograms of watermelon will Julia need to buy?

Answer 1

She will need to buy 9 kg of watermelon.

150g(16) = 9000 g that she needs; each kilogram is 1000 grams:
9000/1000 = 9

Answer 2

we are given

One serving of watermelon weigh about 150 grams

watermelon required by one person =150 g

total number of persons =60

total amount of watermelon = total number of persons*watermelon required by one person

total amount of watermelon=
`60*150g`

total amount of watermelon=
`9000g`

we know that

`1000g=1kg`

we can write as

total amount of watermelon=
`9*1000g`

we can replace 1000g as 1kg

total amount of watermelon=
`9 kg`...........Answer