allery20 طلباء کے اوسط 60 نمبر اور 30 طلباء کے اوسط 70 ہیں۔ مجموعی اوسط کیا ہے؟
A65
B68
C66
D67
Answer & Solution
Correct answer: C. 66
ٹوٹل 1200 اور 2100 ہیں، لہذا 3300 کو 50 شاگردوں سے تقسیم کرنے سے 66 ملتا ہے۔
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