In an examination of a certain class, at least 70% of the students failed in Physics,

QuestionsCategory: MathIn an examination of a certain class, at least 70% of the students failed in Physics,
Nikole Mccray asked 5 months ago
In an examination of a certain class, at least 70% of the students failed in Physics, at least 72% failed in Chemistry, at least 80% failed in Mathematics and at least 85% failed in English. How many at lest must have failed in all the four subjects ?

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