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ഒരു സ്കൂളിലെ ആകെയുള്ള മൂന്ന് ക്ലാസുകളിലായി യഥാക്രമം 50, 60, 70 വിദ്യാർത്ഥികൾ ആണുള്ളത്. ഒരു പരീക്ഷയിൽ യഥാക്രമം 80%, 70%, 60% എന്നിങ്ങനെ ഓരോ ക്ലാസിൽ നിന്നും കുട്ടികൾ വിജയിച്ചു. അങ്ങനെയെങ്കിൽ സ്കൂൾ മൊത്തത്തിൽ പരിഗണിച്ചാൽ പരീക്ഷയിലെ വിജയശതമാനം എത്ര ?

A68 8/9%

B70%

C71%

D73 1/3%

Answer:

A. 68 8/9%

Read Explanation:

To find the percentage of students who passed:

Step 1: Calculate the number of students who passed in each class

Class 1: 50 × 0.8 = 40 students
Class 2: 60 × 0.7 = 42 students
Class 3: 70 × 0.6 = 42 students

Step 2: Calculate the total number of students who passed

40 + 42 + 42 = 124 students

Step 3: Calculate the total number of students in the school

50 + 60 + 70 = 180 students

Step 4: Calculate the percentage of students who passed

(124 / 180) × 100% ≈ 68.89%

So, the percentage of students who passed in the examination from the entire school is:

68.89%


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