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Five-ninths of a number is equal to twenty-five percent of a second number. The second number is equal to one-fourth of a third number. The value of the third number is 2960. How much is 30 percent of the first number?

A9.99
B99.9 ✓ Correct
C89.9
D88.9
Correct answer: (B) 99.9
Explanation

30% of the first number is 99.9.

Third number = 2960, so second number = 2960/4 = 740.

25% of second = 0.25 x 740 = 185.

This equals 5/9 of the first number, so first = 185 x 9/5 = 333.

30% of 333 = 0.30 x 333 = 99.9.

Method: back-chain from the third number to the first.

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