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# The driveway is 11m x 4 m. The gravel is 6cm deep. There are 0.4 m3 of gravel. How many bags needed?

### 5 Answers

- ?Lv 71 month ago
The driveway is 11 m x 4 m.

The gravel is 6 cm deep.

There are 0.4 m^3 of gravel.

(11 × 4 × 0.06) / 0.4 = 6.6

7 bags needed.

- lenpol7Lv 71 month ago
Volume of gravel neede is

11 m 6.6 bags 4 m x 0.06 m = 2.64 m^3

No. of bags needed is 2.64 m^3 / 0.4 m^3 = 6.6 bags

Since bags are not sold in fractions/decimals , then you will need 7 bags.

- billrussell42Lv 72 months ago
11 m x 4 m x 0.06 m = 2.64 m³

do you mean each bag is 0.4 m³?

in that case

2.64 m³ x 1 bag/0.4 m³ = 6.6 bags. 7 needed.