It rained as much on Wednesday as on all the others days of the week combined. If the average rainfall for the whole week was 3 cm, then how much did it rain on Wednesday?

2.625 cm

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3 cm

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10.5 cm

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15 cm

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None of these

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Solution

The correct option is C 10.5 cm
Let, the rainfall on Wednesday be x cm so that on the other 6 days, the total is also x.
Since average rainfall for the week = 3 cm
$∴ x + x = 3 \times 7$ or x = 10.5 cm.

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It rained as much on Wednesday as on all the others days of the week combined. If the average rainfall for the whole week was 3 cm, then how much did it rain on Wednesday?

The correct option is C 10.5 cmLet, the rainfall on Wednesday be x cm so that on the other 6 days, the total is also x. Since average rainfall for the week = 3 cm ∴ x+x=3×7 or x = 10.5 cm.

The correct option is C 10.5 cm
Let, the rainfall on Wednesday be x cm so that on the other 6 days, the total is also x.
Since average rainfall for the week = 3 cm
$∴ x + x = 3 \times 7$ or x = 10.5 cm.