Answer: Maria 248, Denise 62 and Joseph made 372 cookies.
Explanation:
Maria has made 248 cookies, Denise has made 62 cookies, Joseph has made 372 cookies.
In this explanation, we will take that each kid's number of cookies is marked with the initials of their name. So, for Maria, it would be - m, for Denise - d, and for Joseph - j
Maria had 4 and Joseph had 6 times as many cookies as Denise.
m + d + j = 682 which is 4d + d + 6d = 682, 11d equals 682 and when we divide those number we get number of Denise's cookies so it would be:
M(Maria) = 62 x 4 = 248 and J(Joseph) 62 x 6 = 372
