Answer:
10 chocolate donuts were bought.
Step-by-step explanation:
Given data:
Caspar bought 8 more jelly donuts than chocolate donuts.
He bought 5 times as many jelly donuts as chocolate donuts.
In order for us to answer the we need to make equation from the statements given
Let jelly donuts be denoted by X
Let chocolate donuts be denoted by Y
From this statement 'Caspar bought 8 more jelly donuts than chocolate donuts.'
X +8 = Y (equation 1)
From this statement 'He bought 5 times as many jelly donuts as chocolate donuts.'
5X = Y (equation 2)
Solving simultaneous equations using the method of substitution.
Substituting equation 2 into equation 1
X + 8 = 5X
8 = 5X - X
8 = 4X (Making X the subject of formula by dividing both sides by 4)
2 = X
Substituting X into equation 2
Y= 5 * 2
Y = 10
