Mathematics, 26.03.2020 19:12 zoeyanai1

Betty can mow a lawn in 90 minutes. Vanessa can mow the same lawn in 60 minutes. How long does it take for both Betty and Vanessa to mow the lawn if they are working together?

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Betty can mow a lawn in 90 minutes. Vanessa can mow the same lawn in 60 minutes. How long does it ta...

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