W kwietniu sprzedano 60 opakowań lodów, a w maju – 150 opakowań tych lodów.
O ile procent sprzedaż lodów była wyższa w maju niż w kwietniu? Wybierz właściwą
odpowiedź spośród podanych.
A. 250% B. 150% C. 90% D. 40%

B. 150%

Step-by-step explanation:

The question in English is

60 packages of ice cream were sold in April, and 150 packages of these ice cream in May.

By what percentage was the sale of ice cream higher in May than in April? Choose the right one

answer from among given.

we know that

60 packages of ice cream were sold in April

This amount represent the 100%

150 packages of ice cream were sold in May

so

using proportion

How much percentage represent the difference of packages between April and May

The difference is 150-60=90 packages

the expected value of the random variable : 0, 1 and 2

step-by-step explanation: