1.  Hemavathi cut a cake into two halves and cuts one half into smaller pieces of equal size. Each of the small pieces is fifteen grams in weight. If she has nine pieces of the cake in all with her, how heavy was the original cake ?
A. 240 gms
B. 280 gms
C. 180 gms
D. 170 gms

Answer: Option A

Explanation:

The nine pieces consist of 8 smaller equal pieces and one half cake piece.

Weight of each small piece = 15 g.

So, total weight of the cake = [2 x (15 x 8)]g = 240 g.