Tutor MathsGuru: Ask me for your burning Maths questions!
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Pls help to provide worked solutions and thanks in advance.
Answer given: m=1
http://postimage.org/image/2uvidl31g/ -
Pls help to provide worked solutions and thanks in advance.
No answer given
http://postimage.org/image/2uwahpzfo/ -
Pls help to provide worked solutions and thanks in advance.
No answer given.
But I think the answer is 38.7 cm2
http://postimage.org/image/enqfh0tg/ -
Vanilla Cake:
hiPls help to provide worked solutions and thanks in advance.
No answer given.
But I think the answer is 38.7 cm2
http://postimage.org/image/enqfh0tg/
http://postimage.org/image/2vdnmv63o/
cheers. -
Vanilla Cake:
HiPls help to provide worked solutions and thanks in advance.
No answer given
http://postimage.org/image/2uwahpzfo/
http://postimage.org/image/2kpxlgww4/
cheers. -
she0407:
Nope...So the child can explain like the above.
thank you coffeecat. your explaination is very clear. Can I ask you 1 question? Is it a must to draw a model for PSLE math?
Thanks. -
Vanilla Cake:
This kinda puzzle, the concept is similar to sudoku, if you or your sister has played before.Pls help to provide worked solutions and thanks in advance.
Answer given: m=1
http://postimage.org/image/2uvidl31g/
Simply put, in solving such puzzles, need to look for an opening.
Here it is at row2 column 3 (the left of m), it is \"under the influence of\" or affected by numbers 1, 2, 3 and 4, thus leaving 5 as the only viable option left.
After this, i think there might be other ways to proceed. One is again look for another square that is affected by 4 other numbers, example row 2 column1, which is 3.
If without any previous sudoku experience, can link this concept to chess, like \"under attack\" from rook or bishop. -
Vanilla Cake:
I think you or your sister might have done \"similar\" but easier questions.
Five classes A,B,C,D and E took part in an international chess competition.
Each class sent in 2 participants.
The rules of the competition were:
(a) Participants do not compete with each other for more than 1 game,
(b) Participants from the same class cannot compete with each other.
After a few rounds of competitions, it turned out that all had completed different number of games, except for a participant from class A.
How many games had the 2 participants from class A completed?
This question is like a puzzle, requires some drawing. First Draw 10 dots to represent the 10 person (called 1, 2, .., 10, where 1,2 from same class, ..., 9 & 10 from same class). You can draw them in the form of 10 vertices of a 10-gon, where 2 dots (eg 1 and 2) are horizontally on the same level, and there are 5 levels (5 classes).
Notice that the pairs are not identified with anyclass yet.
The clue is : all had completed a different number of games.
So the maximum is 8, minimun 0, 9 possible different numbers, indeed there must exist one who has the same number as some other person.
Now we construct the players who completed 8 and 0 games.
Take person 1 and 2. 1 must play with the other 8 but can't play with 2. So you connect dot 1 with dot 3 4 5 6 7 8 9 10.
Now out of the 10 dots, everyone has played 1 game except for 2, so it will be the player with 0 game.
Now we shall construct players who completed 7 and 1.
take person 3 and 4. 4 has played only 1 game so far, we will let it be the player with only 1 game. So connect 3 with 5, 6, 7, 8 , 9, 10.
So you continue this process, while taking the next pair from the same class, leaving 1 untouched and the other playing more games.
Eventually you should reach 1 pair (the last pair) who both completed 4 games.
Notice that the question doesn't specify which of the 2 participants from class A, because it doesn't and shouldn't made any difference in this case. -
Chan09:
This is a funny question. I suspect there is a diagram involved. The fact that the ans is not 1/6 shows that there is overlapping between the 2 identical squares. In fact, it might be the case that the overlapping part is shaded, and if it represents 1 unit, then the total area of the figure will be 5+5+1 =11 units.Need help
2) a figure is made up of 2 identical squares. 1/6 of each square is shaded. What fraction of the whole figure is shaded?
Ans: 1/11
Thank you :? -
In 2008, there were 883 pupils in Greenwood Primary School and 1/3 of them were girls. After merging with Blackforest Girls’ School in 2009, 3/4 of the pupils in the merged school are now girls.
How many girls were from Blackforest Girls School?
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