Multiple choice

If 30% of a number is equal to two third of another number, what is the ratio of the first number to the second? यदि किसी संख्या का 30% दूसरी संख्या के 2/3 के बराबर है, तो दोनों संख्याओं के अनुपात क्या हैं?

  1. 1 : 9

  2. 1 : 3

  3. 20 : 9

  4. 9 : 20

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Let the first number be x and second be y. 30% of x = 2/3 of y, so 0.3x = 2y/3. Solving: x/y = (2/3)/0.3 = (2/3)/(3/10) = 20/9. The ratio is 20:9.