Aeth pump o blant i siopa Nadolig. O'r cliwiau isod, allwch chi weithio allan pwy brynodd beth, i bwy, a faint a gostiodd?

Cliwiau:

Prynodd Glenwen anrheg i'w hewythr.

Yr anrheg i frawd oedd y rhataf.

Yr oedd yr anrheg i fam £10 yn llai na'r seinyddion a brynwyd i chwaer

Nid y pyped llaw yw'r anrheg i dad.

Prynodd Seren Gêm Cyfrifiadur, a gostiodd yn union ddwywaith gymaint â'r set adeiladu.

Costiodd yr anrheg i ewythr lai na'r un a brynwyd i chwaer.

Costiodd y set adeiladu fwy na £10.

Cafodd y tad beth gemwaith yn anrheg.

Gwariodd Dafydd £30.

Prynodd Bronwyn byped llaw.

Cymorth/Awgrymiadau

Efallai y bydd angen i chi ddefnyddio'r Grid Rhesymeg isod i ddatrys y pos hwn. Os nad ydych chi'n gwybod sut i ddefnyddio grid rhesymeg, ewch i'r wefan posau rhesymeg hon i gael tiwtorial

Pdf Argraffadwy

Ar ôl gorffen, gallwch ysgrifennu'r atebion gan ddefnyddio tabl fel yr un isod.

Enw'r Plentyn	Anrheg a Brynwyd	I Bwy	Cost
Glenwen
Dafydd
Bronwyn
Gwion
Seren

Five children went Christmas shopping. From the clues below, can you work out who bought what, for who, and how much it cost?

Clues:

Glenwen bought a gift for her uncle.

The gift for a brother was the cheapest.

The gift for a mum was £10 less than the speakers bought for a sister

The hand puppet is not the gift for a dad.

Seren bought a Computer Game, this cost exactly twice as much as the building set.

The gift for an uncle cost less than the one bought for a sister.

The building set cost more than £10.

The dad was gifted some jewellery.

Dafydd spent £30.

Bronwyn bought a hand puppet.

Help/Hints

You may need to use the below Logic Grid to solve this puzzle. If you do not know how to use a logic grid, you can visit this logic puzzle website for a tutorial

Printable pdf

Once completed, you can use a table like the one below to write the answers.

Child's Name	Gift Bought	Who For?	Cost
Glenwen
Dafydd
Bronwyn
Gwion
Seren