alleryনয় নম্বর গড় 30; 24 42 হিসাবে প্রবেশ করা হয়েছে৷ সঠিক গড়?
A32
B26
C28
D34
Answer & Solution
Correct answer: C. 28
18 এর অতিরিক্ত সংশোধন করলে গড় 18 ÷ 9 = 2 কমিয়ে দেয়, 28 দেয়।
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