A rectangular sheet of metal is 40cm by 15cm Equal squares of side 5cm are cut off at the corners an...........

Quantitative Aptitude ( CCS) Mensuration 2D

A rectangular sheet of metal is 40cm by 15cm. Equal squares of side 5cm are cut off at the corners and the remainder is folded up to form an open rectangular box. The volume of the box is

750cm³

720cm³

680cm³

650cm³

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Explanation:

Length of rectangular sheet = 40 cm
Breadth of rectangular sheet = 15 cm
Since, squares of side 5 cm are cut off from the corner of the sheet.
Therefore, new length = 40 – (5 + 5) cm = 30 cm
new breadth = 15 – (5 + 5) cm = 5 cm
Now, volume of the open box = (30 × 5 × 5) cm³ = 750 cm³