Amber’s grandmother is cooking a
roast for their Sunday dinner. It weighs
4 kilograms and needs to be cooked for
40 minutes for every kilogram of weight.
She puts it in the oven at 9.50 am. What time will
the roast be ready?
My Strategy:
4 x 40 = 160m
160m = 2h & 40m
2h + 40m + 9:50 am
= 12:30 pm
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