Answer :
The number of cookies did she pack is 438.
Calculation of the number of cookies:
Since Janice and Siti packed 146 cookies altogether. Janiće and Huiling packed 374 cookies altogether. Huiling packed 3 times as many cookies as Siti
So, the number of cookies should be
= 146 (3)
= 438
Basically, we multiply the cookies with 3 times so that the no of cookies could come
Hence, we can conclude that The number of cookies did she pack is 438.
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