alleryএটা বাকচৰ কলমৰ 3/5 হেৰুৱাই পেলায়, তাৰ পিছত বাকী 1/4; 6 যোগ কৰিলে প্ৰাৰম্ভিক গণনাৰ আধা হয়; প্ৰাৰম্ভিক গণনা?
A36
B24
C30
D40
Answer & Solution
Correct answer: C. 30
দুয়োটা আঁতৰোৱাৰ পিছত কলমৰ 3/10 থাকে, গতিকে 6 কলম প্ৰাৰম্ভিক গণনাৰ 1/2 − 3/10 = 1/5 সমান, যিটো আছিল 30।
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