32) Park, Jack, and Galvin distributed prize money of \( x \) dollars among themselves. Park received \( 3 / 10 \) of what Jack and Galvin together received. Jack received \( 3 / 11 \) of what Park and Galvin together received. What is the ratio of the amount received by Park to the amount received by Jack? (A) \( 7: 8 \) (B) \( 8: 7 \) (C) \( 10: 11 \) (D) \( 14: 13 \) 33) Of Ibrahim's salary, \( \frac{1}{3} \) is spent for clothing, \( \frac{2}{5} \) for food, and \( \frac{1}{10} \) for transportation. What part of Ibrahim's salary is left for other expenditures and savings? a) \( \frac{1}{6} \) b) \( \frac{5}{6} \) c) \( \frac{2}{9} \) d) \( \frac{2}{7} \)
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To solve the first problem, let P, J, and G be the amounts received by Park, Jack, and Galvin, respectively. The relationships given can be expressed as: \( P = \frac{3}{10}(J + G) \) and \( J = \frac{3}{11}(P + G) \). By substituting and rearranging these equations, you will ultimately find the ratio of Park's amount to Jack's amount, which simplifies down to the option (B) \( 8: 7 \). For the second problem, Ibrahim’s expenditures add up to: \( \frac{1}{3} + \frac{2}{5} + \frac{1}{10} \). First, find a common denominator (which is 30), and rewrite the fractions: \( \frac{10}{30} + \frac{12}{30} + \frac{3}{30} = \frac{25}{30} \). The leftover fraction from his salary is found by subtracting this from 1 (i.e., his total salary), resulting in \( \frac{5}{30} = \frac{1}{6} \). Thus, the answer is (a) \( \frac{1}{6} \).