A parallelogram-shaped hall has an area of 180 $c m^{2}$ . It is tiled with parallelogram-shaped tiles of base of 3 cm and height 4 cm. If each tile costs ₹7, then cost of tiling the hall is ___.

₹115

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₹105

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₹125

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₹110

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Solution

The correct option is B
₹105

The number of tiles = $\frac{a r e a o f h a l l}{a r e a o f 1 t i l e}$

= $\frac{180}{3 \times 4}$

= 15

Cost of tiling = cost of 1 tile $\times$ number of tiles

= 7 $\times$ 15

= ₹105

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A parallelogram-shaped hall has an area of 180 cm2. It is tiled with parallelogram-shaped tiles of base of 3 cm and height 4 cm. If each tile costs ₹7, then cost of tiling the hall is ___.

The correct option is B ₹105 The number of tiles = area of hallarea of 1 tile = 1803×4 = 15 Cost of tiling = cost of 1 tile × number of tiles = 7 × 15 = ₹105

A parallelogram-shaped hall has an area of 180 $c m^{2}$ . It is tiled with parallelogram-shaped tiles of base of 3 cm and height 4 cm. If each tile costs ₹7, then cost of tiling the hall is ___.

The correct option is B
₹105

The number of tiles = $\frac{a r e a o f h a l l}{a r e a o f 1 t i l e}$

= $\frac{180}{3 \times 4}$

= 15

Cost of tiling = cost of 1 tile $\times$ number of tiles

= 7 $\times$ 15

= ₹105