# What will be the Ratio between 1st and 2nd Number? If

If 70% of a number is equal to three-fifth of another number, what is the ratio between the 1st and the 2nd numbers, respectively?

- 7:6
- 6:7
- 3:7
- 7:3

**Answer: (2) 6 : 7**

**Explanation:-**

Let the first number and second number be X & Y .

According to the question,

X x 70/100 = Y x 3/5

7 X/10 = 3 Y /5

7 X x 5 = 3 Y x 10 (by cross multiplication)

7 X = 3 x 2 Y

7 X = 6 Y

X /Y = 6/7

Hence,the ratio of 1st & 2nd is 6 : 7.