Answer: 25 red marbles
Step-by-step explanation:
Fraction of yellow marbles = 1/3
Fraction of blue marbles = 1/4
Fraction of red marbles = 1 - (1/3 + 1/4) = 5/12
Therefore, the number of red marbles that are there in the bowl would be:
= 5/12 × 60
= 25 red marbles