The answer is 18 are white chocolate.
Here is my proof
4 × 6 = 24 and 3 × 6 = 18 and I got 4 and 3 from the ratio of dark chocolate candies to white chocolate candies and I got the 6 from the multiplication chart that they both end up with the same number which is 6. So 18 is the answer
Answer:
x: work a woman can do in 1 day
y: work a girl can do in 1 day
Then
2x + 7y =1/4
4x + 4y =1/3
4x + 14y =2/4 (1)
4x + 4y =1/3 (2)
=> Let (1) - (2), 10y =2/4-1/3 <=>10y = 1/6 <=> y = 1/(6x10) = 1/60 (work)
=> From (2),4x = 1/3 - 4x1/60 => 4x = 16/60 => x = 4/60 (work)
=> 1 day, a woman and a girl can do: 1/60+4/60 = 5/60 =1/12 (work)
Then, the day required for a woman and a girl to complete work: 12 days
<span>Rock, Carbon, Water, Nitrogen</span>
