Problems And Solutions SEAMO PAPER B 2017

21. Evaluate

\(\frac{1}{1 × 2}+\frac{1}{2 × 3}+\frac{1}{3 × 4}+ ⋯+\frac{1}{8 × 9}+\frac{1}{9 × 10}\)

22. \(A , B\) and \(C\) are three consecutive whole numbers such that

\(A × B × C = 504\)

Find the value of \(A\)?.

23. How many ways are there to put 2 beads on a 3 × 3 grid, so that they do not lie on the same line?

24. In \(Δ ABC, AD =\frac{1}{2}DB, CE =\frac{1}{4}CB\). Given that the area of \(ΔCDE\) is \(9\) cm², find the area of \(ΔABC\) in cm²

25. Evaluate

\(1 − 2 + 3 − 4 + ⋯+ 199 − 200 + 201\)

Baca juga

SEAMO PAPER B 2021

SEAMO PAPER B 2020