P4 Math: Internal Transfer with Ending Multiples

Questions like the ones below will appear in P4 SA1 and SA2 papers in Section C.

A similar version of such question can also be found "here".

Bala has $156.
Teo has $40.

How much does Bala need to give Teo so that
Bala will have 3 times as much money as Teo at the end?


If the above question is easy, try to do the more challenging question below.

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