Olympiad Math Trainer Week 4

belajar 29

If you have ever read my articles ablout Olympiad Math Trainer Week 2 dan Olympiad Math Trainer Week 3, please read to this post. Now, I give your some problems for Olympiad Math Trainer Week 4.

Solve these questions. Show your working clearly. Each question carries 4 marks.

1. Use simple method to calculate 99 999 x 12 345.

2. Observe the number pattern below.

121, 12.321, 1.234.321, 123.455.321, … .

What the number is the 5th term?

3. Compute 1 + 2 + 3 + … + 49 + 50 + 49 + …. + 3 +2 + 1.

A train takes 27 s to cross a bridge 420 m long. It takes 30 s to pass through a tunnel 480 m long at the same speed.

(a) What is the speed of the train?

(b) What is the lenght of the train?

Please visit Mathandflash.Com to read Olym[iad Math Trainer.

Regard,

Istiyanto




Comments

Leave a Reply




mobile spy software buy sildenafil citrate online buy brand viagra
. . . .