Linear equation in two variables
Asked by | 7th Aug, 2009, 06:55: PM
Let x = number of flowers,
y = number of flies,
If one fly sit on each flower, one fly is left behind. In other words, the number of flies are greater than flowers by one.
Hence x + 1 = y.
x - y = -1 .......(1)
If two flies sit on each flower, (y/2 pairs of flies) one flower is left behind. In other words, y/2 pairs of flies are less than the flowers by exactly one.
Hence x - 1 = y/2.
2x - y = 2 ..........(2)
Solving equations (1) and (2)
gives, x = number of flowers = 3 and y = number of flies = 4.
Answered by | 7th Aug, 2009, 09:09: PM
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Verify mobile number
Enter the OTP sent to your number