Together, they have 99 marbles.
What is multiplication?
A product, or an expression that specifies factors to be multiplied, is what happens when you multiply two numbers in mathematics. For instance, the product of 5 and 6 is 30.
given
Ravi has 33 marbles.
His brother has twice (two times) as many marbles as him. Ravi's brother has 33×2=66 marbles.
Together, they have 33+66=99 marbles.
To learn more about multiplication refer to:
https://brainly.com/question/134018
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