Question

Mr. Lim has two types of box. The smaller one can store 8 tins of coffee and the bigger one can store 12 tins of coffee. If the total number of boxes is 20 and he has 184 tins of coffee, find the number of each kind of box.
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Answer 1

Answer:

14 and 6

Step-by-step explanation:

Number of 8- tin boxes= x

Number of 12- tin boxes= y

• x+y=20 ⇒ x= 20-y
• 8x+12y= 184
• ⇒ 8(20-y) + 12y = 184 ⇒ 160 -8y +12y = 184 ⇒ 4y= 24 ⇒ y=6
• ⇒ x=20 -y ⇒ x= 20 - 6 ⇒ x= 14

Answer: 14 off 8- tin boxes and 6 off 12- tin boxes