Paper 1 · Mathematical Reasoning and Aptitude
In a class of 40 students, 2/5 of the students like only one dish, and the remaining students like both dishes. How many students like both?
A8
B16
C20
D24 ✓ Correct
Correct answer: (D) 24 — 24 students like both dishes, so that is the answer.
Explanation
★24 students like both dishes, so that is the answer.
★The class has 40 students in all.
★Two-fifths of 40 is 16, so 16 students like only one dish.
★The rest of the students like both dishes.
★So the number liking both is 40 minus 16.
★This gives 24 students who like both.
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