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521 WorkRate |
Name : _________________ |
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If Ann does a job in 5 days, and Bob does it in 6 days, how long do they take together? (Nearest to the 10th...) |
If Ann does a job in 9 days, and Bob does it in 7 days, how long do they take together? (Nearest to the 10th...) |
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| 521 2.7 1.6 2.3 1.7 3.2 ( 11.5 ) 3.9 1.6 1.3 2 1.6 ( 10.4 ) [[ 21.9 ]] | ||
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