চাল তার ওজনের 2/5 হারায়, তারপর বাকি 1/3; 12 kg অবশিষ্ট আছে; প্রাথমিক ওজন?
A30 kg
B24 kg
C20 kg
D36 kg
Answer & Solution
Correct answer: A. 30 kg
ধরে রাখা ভগ্নাংশ হল 3/5 × 2/3 = 2/5, তাই প্রাথমিক ওজন ছিল 12 ÷ (2/5) = 30 কেজি।
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