alleryتین نمبرز 10, x, 30 ریاضی کی ترقی میں ہیں۔ ایکس کیا ہے؟
A15
B25
C22
D20
Answer & Solution
Correct answer: D. 20
ریاضی کی ترقی میں تین کی درمیانی اصطلاح بیرونی دو کی اوسط ہے، (10 + 30) / 2 = 20۔
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