Total area of the piece of glass square is 1444 cm2. Which is placed above a square table. The width between the table and the edge of the glass piece is 9 cm. Tell the length of the table. (in cm)

This question was previously asked in
RPF SI Previous Paper 1 (Held On: 5 Jan 2019 Shift 1)
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  1. 54
  2. 58
  3. 52
  4. 56

Answer (Detailed Solution Below)

Option 4 : 56
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Detailed Solution

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Given:

Area of the piece of glass square = 1444 cm2

The piece is placed above a square table.

Width between the table and the edge of the piece = 9 cm

Concept used:

If two rectangular sheets are placed on each other and the width between their edges = w, then

Length of the bigger sheet = Length of the smaller sheet + (2 × w)

Formula:

Side of a square = √(a2

Where, a2 = Area of the square

Calculation:

According to the question,

Side of piece of glass square = √1444 = 38 cm

So, length of the table = 38 + (2 × 9) = 38 + 18 = 56 cm

∴ The length of the table is 56 cm.

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