JEE Main20244 Apr 2024Morning ShiftMathematicsSets and RelationsActual
In a survey of 220 students of a higher secondary school, it was found that at least 125 and at most 130 students studied Mathematics; at least 85 and at most 95 studied Physics; at least 75 and at most 90 studied Chemistry; 30 studied both Physics and Chemistry; 50 studied both Chemistry and Mathematics; 40 studied both Mathematics and Physics and 10 studied none of these subjects. Let m and n respectively be the le
Correct answer
0
Step-by-step solution
aligned & 125 m +90- x 130 & 85 P +70- x 95 & 75 C +80- x 90 & ~m + P + C +120-2 x =210 & 15 x 45 & 30- x 0 & 15 x 30 & 30+15=45 aligned