The question below deals with the ratio concept of constant difference.
Such questions will appear in exams once after ratio techniques are taught in P5.
Calculator usage is allowed.
A similar question on constant difference with "age" can be found here.
Peter and Jack have some vouchers.
The number of vouchers that Peter have to
the number of vouchers that Jack have was 1:4 at first.
After each of them bought 66 more vouchers,
the ratio of Peter's vouchers to Jack's vouchers became 5:11.
How many vouchers did both boys have at the end?
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