REET · Mathematics and Science (Level 2)
Linear equations in one/two variables and quadratic equations.
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Q1 · Equations and Roots · EASY
Solve for x: 3x + 7 = 22
Q2 · Equations and Roots · MEDIUM
A student has Rs. 450 in total with notes of Rs. 10 and Rs. 20 only. If the total number of notes is 30, how many Rs. 10 notes does the student have?
Q3 · Equations and Roots · MEDIUM
Find the positive root of the quadratic equation x² - 7x + 12 = 0.
Q4 · Equations and Roots · MEDIUM
If 3x + 7 = 22, then the value of 2x - 5 is: