Sarita and cake
Algebra
Level
pending
Sarita cuts a cake into two halves and cuts one half into smaller pieces of equal size. Each of the small pieces is thirty grams in weight. If she has fifteen pieces of the cake in all with her, how heavy was the original cake?
450 grams
900 grams
840 grams
420 grams
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1 solution
FIFTEEN PIECES CONSIST WITH FOURTEEN PIECES OF WEIGHT 30 GRAMS EACH = 25*30 GRAMS = 420 GRAMS.
TOTAL WEIGHT OF THE CAKE = 2*420 GRAMS = 840 GRAMS