InterviewSolution
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InterviewSolution
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Raju ate \(\frac{3}{8}\) part of a pizza and Adam ate \(\frac{3}{10}\)part of the remaining pizza. Then Renu ate \(\frac{4}{7}\) part of the pizza that was left. What fraction of the pizza is still left?1. \(\frac{1}{8}\)2. \(\frac{3}{16}\)3. \(\frac{1}{4}\)4. \(\frac{5}{12}\) |
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Answer» Correct Answer - Option 2 : \(\frac{3}{16}\) Given: Raju ate \(\frac{3}{8}\) part of a pizza and Adam ate \(\frac{3}{10}\)part of the remaining pizza. Then Renu ate \(\frac{4}{7}\) part of the pizza that was left. Concept Used: Concept of fractional substraction Calculation: Let, the total pizza is 1 part Raju ate \(\frac{3}{8}\) part Remaining (1 - 3/8) part ⇒ 5/8 part Adam ate \(\frac{3}{10}\)part of the remaining pizza ⇒ Adam ate (5/8 × 3/10) = 15/80 = 3/16 part of the total pizza Total pizza is eaten (3/8 + 3/16) ⇒ 9/16 part Remaining pizza (1 - 9/16) ⇒ 7/16 part Then Renu ate \(\frac{4}{7}\) part of the pizza Renu ate (7/16 × 4/7) = 1/4 part of the pizza Together they ate (3/8 + 3/16 + 1/4) part ⇒ 13/16 part The fraction of the pizza till left (1 - 13/16) ⇒ 3/16 part ∴ 3/16 fraction of the pizza is still left. |
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