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Decimals, SM-Bank 051 MC

Four groups of backpackers picked blueberries over a two hour period.

The weight of the blueberries collected (in kg) by the groups in each hour is shown in the table below.

  Group 1 Group 2 Group 3 Group 4
1st Hour 2.57 2.89 2.5 2.87
2nd Hour 2.35 2.06 2.92 2.53

Which group picked the greatest mass over the two hours?

  1. Group 1
  2. Group 2
  3. Group 3
  4. Group 4
Show Answers Only

`C`

Show Worked Solution

`text(A possible strategy:)`

`text(A quick estimate of the 1st 2 options shows)`

`text(that both sums will be lower than 5 kg.)`

`=>\ text(Evaluate only the last 2 options:)`

`text(Group 3:)\ \ 2.5 + 2.92 = 5.42\ text(kg)`

`text(Group 4:)\ \ 2.87 + 2.53 = 5.40\ text(kg)`

`=>C`