exam Maths Puzzle Numerical Ability

A&B working together can finish painting the house in six days. A, working alone, can finish it in five days less than B. How long will it take each of them to finish the work alon

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exam Other Question

use a centimeter ruler and a separate sheet of paper to draw an 8 cm. by 6 cm. rectangle. List its perimeter on the table below. Then cut out the rectangle and also cut along the Please help! I need to solve for x, y, and z. I don't understand how to solve for three variables.

Solve for x, y, z
X + 10Y + Z = 52
5X + Y + 4Z = 15
X + 2y - 3Z = 12