EMNA Q.30
0. If 7x + 6y = 420, x and y are natural numbers, then what can be said about x?
- Option : B
- Explanation :
7x + 6y = 420
Equation is of the form:
7x + even number = even number.
∴7x has to be even
Hence x has to be even.
0. If 7x + 6y = 420, x and y are natural numbers, then what can be said about x?
7x + 6y = 420
Equation is of the form:
7x + even number = even number.
∴7x has to be even
Hence x has to be even.
