Populations of two villages X and Y are in the ratio of 5:7 respectively.If the population of village Y increases by 25000 and the population of village X remains unchanged the respective ratio of their populations becomes 25:36 What is the population of village X ?
1). 6,25,000
2). 6,75,000
3). 8,75,000
4). 9,00,000
Answer This Question with Explaination and Earn! Click Here to Know More!
As the ratio of populations of the two villages are in the ratio 5:7, let the respective populations be 5p and 7p
If the population of Y increases by 25000, the population of Y is 7p+25000 and the new ratio equals 5p:7p+25000
This new ratio is 25:36
Hence, $\frac{5p}{7p+25000}=\frac{25}{36}$
Or, $180p = 175p + 625000$
or $p = 125000$
Therefore, the population of X = 5p = 6,25,000
As the ratio of populations of the two villages are in the ratio 5:7, let the respective populations be 5p and 7p
If the population of Y increases by 25000, the population of Y is 7p+25000 and the new ratio equals 5p:7p+25000
This new ratio is 25:36
Hence, $\frac{5p}{7p+25000}=\frac{25}{36}$
Or, $180p = 175p + 625000$
or $p = 125000$
Therefore, the population of X = 5p = 6,25,000
1. What will come in place of question mark (?) in the following questions ?
3. The pointing device that displays the window over the entire screen is
4. Which of the following has the fractions in ascending order ?
6. Through which of the following ways can devices be connected to a computer?