116
Question
Coco has 10 boxes of pencils. Each box has 30 pencils. He needs 540 pencils. How many more boxes does he need?
Coco has 10 boxes of pencils. Each box has 30 pencils. He needs 540 pencils. How many more boxes does he need?
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Solution
The correct option is A 8 boxes
Say:
Number of boxes of pencils Coco has =10 boxes
Number of pencils a box contains =30 pencils
Steps:
We know that each box has 10 pencils
Let us calculate on the WB, the total number of pencils in 10 boxes.
Coco has 300 pencils.
Coco needs 540 pencils altogether.
Additional pencils needed by Coco =540–300=240 pencils
Let us now calculate how many more boxes are needed by Coco.
One box contains 30 pencils.
Let us calculate this on the whiteboard.
Hence, the number of boxes of pencils required is 8.
Hence, option C is the answer.
Say:
Number of boxes of pencils Coco has =10 boxes
Number of pencils a box contains =30 pencils
Steps:
We know that each box has 10 pencils
Let us calculate on the WB, the total number of pencils in 10 boxes.
Coco has 300 pencils.
Coco needs 540 pencils altogether.
Additional pencils needed by Coco =540–300=240 pencils
Let us now calculate how many more boxes are needed by Coco.
One box contains 30 pencils.
Let us calculate this on the whiteboard.
Hence, the number of boxes of pencils required is 8.
Hence, option C is the answer.
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