farooq wrote:Q-1. Tom placed a few red and blue balls in a box. He marked all red balls with number 7 and all blues balls with number 3. During his experiment, Tom picked a few balls of both colors and got 441 after multiplying all values. How many balls did Tom picked?

Q-2. How many balls were of Red color?

Q-3. How many balls were of Blue color?

(For actual GMAT question please refer OG-11,PS:Q-234):

mpaudena wrote:

farooq wrote: IMO Q1 - 42; Q2 - 21; Q3 - 21; What's the AO?

Hi,

I tried to made this question for my clear understanding. Here Tom picked few red balls and few blues balls. A number on red and blue balls are 7 and 3 (prime numbers), respectively.

Tom got = 441 = 9*49 = 3*3*7*7. It means tom picked total four balls, two of 3's and two of 7's.

Correct me if I made any mistake while solving this problem.