Two numbers A and B are such that the sum of 5% of A and 4% of B is two-third of the sum of 6% of A and 8% of B. What is the ratio of A and B?

2 : 5

2 : 3

1 : 1

4 : 3

None of these


Description (বিবরণ) :

প্রশ্ন: Two numbers A and B are such that the sum of 5% of A and 4% of B is two-third of the sum of 6% of A and 8% of B. What is the ratio of A and B?

ব্যাখ্যা:

5% of A + 4% of B = 2/3(6% of A + 8% of B)

= > 5A/100 + 4B/100 = 2/3 (6A/100 + 8B/100)

= > 5A + 4B = 2/3 (6A + 8B)

= > 15A + 12B = 12A + 16B

= > 3A = 4B

A : B = 4 : 3