Ratios and Rates

UK Secondary (7-11)

Ratio Tables

Ryan and Valerie are preparing for a party. Ryan blows up $12$12 balloons in $15$15 minutes. Valerie blows up $24$24 balloons in $28$28 minutes. Who is blowing up balloons faster?

a

Complete the table for the number of balloons Ryan blows up in each time period. Assume that he keeps blowing up balloons at a constant rate.

Time (minutes) | $0$0 | $15$15 | $\editable{}$ | $45$45 | $60$60 |
---|---|---|---|---|---|

Balloons | $\editable{}$ | $12$12 | $\editable{}$ | $\editable{}$ | $\editable{}$ |

b

Complete the table for the number of balloons Valerie blows up in each time period. Assume that she keeps blowing up balloons at a constant rate.

Time (minutes) | $0$0 | $28$28 | $56$56 | $84$84 | $\editable{}$ |

Balloons | $\editable{}$ | $\editable{}$ | $\editable{}$ | $\editable{}$ | $96$96 |

c

Using the table above, who is blowing up balloons the fastest?

Valerie

A

Ryan

B

Valerie

A

Ryan

B

Easy

Approx 3 minutes

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