exam Maths Puzzle Numerical Ability

2 points lie in plane x, 2 other points lie in a differen plane y, and the 4 points are coplanar but not collinear.

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exam Other Question

Jim has a jar of dimes, nickels, and pennies. He has one dime more than five times the number of nickels and four times as many pennies as nickels. How many of each coin are in the jar if the total value is $7.77? Graph

3x - y > 6
x > 1
y < 3