1019 past contests
Topic 8 · Solving $\log_2(x+5)=\log_2(x-2)+1$ and two similar equations
Topic 31 · Length of a chord for radius $15$ cm, $13$ cm and $17$ cm at given distances
Topic 40 · Monotonicity of $\tan x$, $\sin x$ and $\cos x$ on $0\lt x\lt\pi$ (true/false)
Topic 32 · Riddles: the tetrahedron, cone, cylinder, sphere and prism
Topic 7 · Subsets and proper subsets, including the empty set (true/false)
Topic 10 · Arranging the letters of $party$: consonant first and vowel last
Topic 35 · Angles $x+45^\circ$, $2x-15^\circ$, $2x-20^\circ$, $x-10^\circ$ of a quadrilateral
Topic 45 · Original point $p$ after reflection in the $y$-axis then the origin, image $(-3,5)$
Topic 14 · Finding $f(x)$ given $f(3x-2)=x^2$ and similar equations
Topic 27 · Limits of the form $\dfrac{0}{0}$: $\lim_{x\to a}\dfrac{x^2+bx+c}{x-a}$
Topic 4 · Riddle: the interquartile range as a measure of spread (second contest)
Topic 31 · Sector area and arc length with $\theta$ in degrees (true/false)
Topic 19 · Sum, product and nature of the roots of a quadratic (true/false)
Topic 8 · Expressing a decimal number in scientific notation
Topic 27 · Point of inflection of $y=x^3-6x^2+5x+7$
Topic 13 · Sum to infinity of a geometric series (second set)
Topic 42 · Evaluating $\sin25^\circ\sin20^\circ-\cos25^\circ\cos20^\circ$ and similar compound-angle expressions
Topic 22 · Decomposing a rational expression with distinct linear factors into partial fractions
Topic 11 · Image of a point under a reflection in another point $p$
Topic 1 · What $\mathbf{a}\cdot\mathbf{b}=0$ implies about two vectors (true/false)