If a positive number 'K' when multiplied by 30% of itself gives a number that is 170% more than the number 'k", then the number 'k' is equal to:
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 3 i.e. 9
According to the question -
k(k × 30/100) = 270k/100
0.3 k2 = 2.7k
0.3k = 2.7
k = 9