Hi, kindly help me with the below questions..hope you can give explanation along with your answers?



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Thank you Ender for your detailed explanation!

guest2013:

doraemo:

http://i60.tinypic.com/68zs61.jpg\"> The figure below, not drawn to scale, is made up of a square and a rectangle. ¼ of the square and 2/11 of the rectangle is shaded. The area of the rectangle is 54 cm2 larger than the square.


(A)\tFind the area of the figure.

Suggested answer:

Assuming:
Area of square = 4 units
Area of rectangle = 11 parts

1 unit = 2 parts
So area of square = 4 units or 8 parts

If area of rectangle - area of square = 54 cm2,
11 parts - 8 parts = 54 cm2
3 parts = 54 cm2
1 part = 18 cm2

Area of figure will be:
11 parts + 8 parts - 2 parts (overlapping area)
= 17 parts

17 x 18cm2 = 306 cm2.

Sorry, may I know why have to minus 2 parts? Not minus 3 parts (54cm2)?

Any other easier method?

Thank you.

Thank you ss2 for your answer.


May I know why is it some school invite all students from P4-P6 to join NMOS but some schools don’t, only P5 onwards are invited. If I am interested to let my daughter to join, what should I do? But on 2nd thoughts, if she is only able to handle a quarter of the questions, do you think it’s advisable to go for it or wait till she’s p5? Thanks.

Hi, please help with the below question:


There are 5 fruits in a basket: an apple, an orange, a pear, a banana and a strawberry. James is allowed to choose only 3 fruits. How many different choices does he have?

Thank you.

Thank you iwork!

Hi iwork, thank you for the hints.


Would appreciate anyone know how to solve the below, I do not really understand the questions.. :? Thanks!

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Hi iwork, thanks for the answers. But without the solution, I am still clueless of how to get the answers…

Hi, please help on the below question?


1. What is the first time, to the nearest minute, after 4.00pm, that the minute hand of a clock will overtake the hour hand?

2. A palindrome is a positive integer whose digits are the same when read forward or backward. For example, 2882 is a 4-digit palindrome and 59195 is a 5-digit palindrome. There are pairs of 4-digit palindrome whose sum is a 5-digit palindrome. One such pair is 2882 and 9339. How many such pairs are there? (You may disregard the order, that is, 9339 and 2882 are considered the same pair as the above-mentioned.)

3. Given that 3 to the power of 20, which denotes multiplying 3 by itself 20 times, is a 10-digit number x48678440y, find x+y.

4. There are seven points on a piece of paper. Exactly four of these points are on a straight line. No other line contains more than two of these 7 points. Three of the seven points are selected to form the vertices of a triangle. How many such triangles are possible?

Thank you.

We plan to go at 4am, we can only join the normal queue. Do you think it I be able to finish by 8am? Thanks.