An open tank is 25 m long 12 m wide and 6 m deep The cost in Rs of plastering its walls and bottom f...........

Quantitative Aptitude (MTS) Mensuration 2D

An open tank is 25 m long. 12 m wide and 6 m deep. The cost (in Rs) of plastering its walls and bottom from the inside at Rs15

per is:

This questions was previously asked in

SSC MTS 26th October 2021 Shift-1

11,160

12,500

13,275

10,800

- The tank is open at the top, so we need to calculate the area of the walls and the bottom.

- The dimensions are 25 m long, 12 m wide, and 6 m deep.

- The bottom's area is length multiplied by width: 25 m x 12 m = 300 m².

- The walls comprise:

- Two longer walls: 2 x (25 m x 6 m) = 300 m².

- Two shorter walls: 2 x (12 m x 6 m) = 144 m².

- Total area to be plastered = 300 m² (bottom) + 300 m² (longer walls) + 144 m² (shorter walls) = 744 m².

- Cost of plastering is 744 m² x Rs15/m² = Rs 11,160.

The correct answer is Option 1: 11,160.

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