Answered

La o lucrare de control la matematică 10% dinte elevi nu au rezolvat o problemă ,40% au rezolvat-o greșit ,iar restul de 12 elevi au rezolvat-o corect .Cati elevi au participat la lucrare ?



Answer :

olumideolawoyin

Answer:

24

Step-by-step explanation:

Percentage of students that didn't solve a problem = 10% of the students.

Percentage of students that solved it wrongly = 40% of the students.

Percentage of students that solved it correctly = 100% - 50% = 50% of the total students = 12 students.

Therefore, the total number of students that participated in the work which represents 100% = 2 × 50% of students = 2 × 12

= 24

răspuns:

24

explicație pas cu pas:

procent de elevi care nu au rezolvat o problemă = 10% dintre elevi.

procent de elevi care au rezolvat gresit = 40% din elevi. procent de studenți care au rezolvat corect = 100% - 50% = 50% din totalul studenților = 12 studenți.

prin urmare, numărul total de elevi care au participat la lucrare care reprezintă 100% = 2 × 50% de elevi = 2 × 12 = 24

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