Mathematics · Data Sufficiency
What is the average age of 45 students studying in a class? Statements: I. The average age of boys is 15.4 years while the average age of girls is 14.6 years. II. Boys and girls in the class are in the ratio 4:5 respectively. III. The number of boys is less than that of girls by 5.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1All Statements I, II, and III together are necessary
- 2Statement I and either Statement II or Statement III are sufficient✓
- 3Only I and III are sufficient
- 4Only I and II are sufficient
Correct answer
Statement I and either Statement II or Statement III are sufficient
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