exam
Maths Puzzle
Numerical Ability
A=4B-3 B-A= 27
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exam Other Question
There are 40 cows and chicken in the farmyard. One quiet afternoon, Jack counted and found that there were 100 legs in all. How many cows and chickens are there? Solve this problem by writing and solving an equation.
Equation: 5x + 2y = 10
a. Solve the equation for y and sketch the graph.
b. Multiply the equation 5x + 2y = 10 by 3, and then solve for y. How does the graph of this equation compare with the graph of the original equation? Explain your answer.