Question
P4.WN.JC.21022301-A1
Barbara and Betty had the same number of problem sums to do.  Barbara did 10 problem sums per hour. Betty did 7 problem sums per hour. When Barbara finished doing all the problem sums, Betty still had 21 more problem sums to do.
  1. How many hours did Barbara take to finish all her problem sums?
  2. How many problem sums did Barbara have to do in total?
4 m
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Primary 4 WHOLE NUMBERS P4.WN.JC.21022301

22 May 2024, 03:07 AM

Barbara and Betty had the same number of problem sums to do.  Barbara did 10 problem sums per hour. Betty did 7 problem sums per hour. When Barbara finished doing all the problem sums, Betty still had 21 more problem sums to do.
  1. How many hours did Barbara take to finish all her problem sums?
  2. How many problem sums did Barbara have to do in total?
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