alleryA 3/4 L মিশ্রণ হল 2/5 আয়তন অনুসারে সিরাপ; কত জল এটি 1/4 সিরাপ তৈরি করে?
A3/20 L
B3/10 L
C9/20 L
D6/5 L
Answer & Solution
Correct answer: C. 9/20 L
সিরাপ আয়তন হল 3/4 × 2/5 = 3/10 L, তাই প্রয়োজনীয় মোট হল (3/10) ÷ (1/4) = 6/5 L এবং জল যোগ করা হল 6/5 − 3/4 = 9/20 L৷
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