do you know the answer for question 8 of science bklt A. It is about putting some dead leaves in the soil and covering it with black paper around plant A.

question:Which is not a reason for doing this?

please help me with this maths question. It is taken from raffles girls prelim and the answer to that question is 14 square cm. thanks! If the picture is not here, pls go to the following website:

http://i43.tinypic.com/2ldwupt.jpg

The diagram shows a circle with centre O. AB and XY are diameters of circle. Find difference between shaded and unshaded areas. wrote this for those not able to see words clearly.

please help me with this maths question. It is taken from raffles girls prelim and the answer to that question is 14 square cm. thanks! If the picture is not here, pls go to the following website:

http://i43.tinypic.com/2ldwupt.jpg

The diagram shows a circle with centre O. AB and XY are diameters of circle. Find difference between shaded and unshaded areas. wrote this for those not able to see words clearly.

please help me with this maths question. It is taken from raffles girls prelim 2012 maths and the answer to that question is 14 square cm. thanks!

If the picture is not here, please go to this website:
http://i43.tinypic.com/2ldwupt.jpg

please help me with this question. I need the answer by today.


Peter noticed that the leaves of plant have tiny egg-like structures that resemble butterfly eggs. He also observed that the butterflies did not lay eggs when they saw them. Explain why.

Pls help me with this maths question taken from the prelim papers. Post a reply ASAP if you know the answer and thanks in advance!

If the picture of the question is not here, please go to the following website:

http://www.tinypic.com/view.php?pic=14dnhpl&s=5

Pls help me with the formula of sum of even and odd numbers. If u know the formula, please post a reply ASAP. Thank you!

Pls help me with this Mathematics question. I know that the method is repeated identity by using ratio method. But the units are really large to divide and it is tedious. If you know of a simpler method, please post it. Thanks in advance!


Amos, Ben and Carl and David shared the cost of a dinner. The ratio of the amount paid by Amos to the rest of them is 3:7. The ratio of the amount paid by Ben to the rest of them was 1:6. The ratio of the amount paid by Carl to that paid by David is 5:8. Amos paid $54 more than Carl.
a)What was the cost of the dinner?
b)How much did Ben and David pay altogether?

Please help me with this maths question. It is taken from christian brothers P6 prelims 2013 for mathematics and it’s question 30 of paper 1. If you know the method, please post it. If you cannot see the picture, please go to this website, but do not type ‘www’ as the website will not exist:



i44.tinypic.com/1zd0u87.jpg

Thank you!

Pls help me with this Maths question. It is not taken from prelim papers. I just saw it in one practice paper. If you know the answer, please post it. I need it by Sunday this week, 15 September.


A lorry, a van and a car set off at the same time travelling at a constant speed of 60km/h, 80km/h and 120km/h respectively. The lorry and the van were travelling from Town A to Town B while the car was travelling from Town B to Town A. The car passed the lorry 2 minutes after passing the van.
(a) Find the ratio of the distances travelled by the lorry to the van to the car at the moment the car passed the van.
(b) Find the distance between Town A and Town B.