দুটা সংখ্যাৰ যোগফল 45 আৰু ইহঁত 7 : 8 অনুপাতত থাকে। সংখ্যা দুটা হ’ল-
A20, 25
B21, 24
C22, 23
D18, 27
Answer & Solution
Correct answer: B. 21, 24
1।
সংখ্যাবোৰ 7x আৰু 8x হওক, গতিকে সিহঁতৰ যোগফল 15x = 45।
2।
সমাধান কৰিলে x = 3 পোৱা যায়।
3।
সংখ্যাবোৰ হ’ল 7×3 = 21 আৰু 8×3 = 24।
_উৎস: আৰ আৰ বি গ্ৰুপ D (আৰ আৰ চি) পি ৱাই কিউ, অনুষ্ঠিত 27-10-2013, Q.15._
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