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Science in Motion

21 May

Math Arena will be conducting an experimental learning program: Science in Motion, on 25th May 2014 (Sunday). The key objective of this program is to draw students’ curiosity and abilities into a proper experiment class where they learn and utilize experimental skills to discover science concepts themselves, as well as to answer conceptual questions with proper techniques.
bar magnets1. Magnetism and electricity play important roles in our daily lives. Both are also closely related in many useful applications we see every day. Learn how you can magnetize a steel rule with 3 magnetic poles and use a magnetic north pole to attract another magnetic north pole. Charging and supporting a small battery unit becomes an easy feat when you understand how and why certain liquids and solutions are able to produce an electrical current, just like an electrical cell.


electromagnetismo2. Energy comes in several forms, one of which is heat. See how heat can be connected to some complex science phenomenon. Observe and explain why we can use our wet fingers to extinguish a candle’s flame without feeling much heat sensation on your fingers. Trace the knowledge you have to further depths using concepts taught in school to explain such phenomenon beyond the school syllabus.
Boiling Point3. Force and pressure can help us do work and hence, are also linked to forms of energy. Watch what you can do to ice and water at pressure lower than ambient pressure. There are several experiments you can perform related to atmospheric pressure!


Refer-to-a-Friend Discount!  Each participating student will receive a 10% discount.

Sneak-Peek Discount!  Students who have joined our March sneak peek on 2nd March will receive a 15% discount each.


Gross Fee: $110

Date, Time, Venue: 25th May 2014, 3 pm to 6 pm @ Math Arena


Students will be required to hands-on the experiments themselves and discuss answers on worksheets with their classmates in groups. Exams aside, a good learning habit is crucial to every student’s development in the future. Exams are merely complements to the learning journeys, putting part of their skills to the test. We want students to never stop learning given their strong passion in the science fields.


Should you have further query regarding the Science in Motion program, please do not hesitate to call us (6783 3218 / 6781 9325 / 8121 6628) during our office hours (Tuesdays to Fridays 4 – 9 pm, Saturdays and Sundays 9am – 5 pm).

Develop your child’s ability to learn skills and knowledge that will last long in his or her learning journey. Discover Science in Motion at Math Arena today!

Question from Joelle

9 May

stock-vector-dividers-clothing-stores-in-the-u-s-vector-illustration-128648960A factory manufactured 2620 ‘Small’, ‘Medium’ and ‘Large’ size T-shirts.  The ratio of the number of ‘Medium’ size T-shirts to the number of ‘Small’ size T-shirts was 1 : 3.  After  of the ‘Small’ size T-shirts,  of the ‘Large’ size T-shirts and none of the ‘Medium’ size T-shirts were sold, there were 1645 T-shirts left.  How many ‘Small’ size T-shirts were there at first?

Please click the following link for suggested solution: Question from Joelle 09.05.14

Percentage Questions

7 May

The total price for 3 items A, B, C is $106. Suppose that A cost 20% more than B while B costs 25% less than C. Find the Value of C.

Mr Chong had some stars. He gave 1/8 of his stars to the first student and 20% of the remaining stars to the second student .Then he distributed the remaining stars equally to the remaining 8 students. If the remaining 8 students received 7 stars each, how many students did he have at first?

A computer shop buys speakers from its supplier for $X each, and earns a profit of 50% for each speaker. During a sale, the shop decides to offer 20% discount off the selling price and the discounted price is $24. Find the percentage of profit earned for each speaker sold during the sale.

Question from Nicholas

5 May

The figure below shows 3 different triangles, A, B and C. 3/10 of A and 40% of C are shaded.  The shaded area of A is the same as the shaded area of C.  What fraction of the figure is unshaded if 80% of B is shaded? (Leave your answer in its simplest form.)



Please click the following link for suggested solution: Question from Nicholas 05.05.14

Question from Renee

4 May


Mrs Ho bought some cakes for the children in an orphanage.  The girls received twice as many cakes as the boys.  There were as many boys as girls in the orphanage.  Each boy ate 4/9 of a cake and they finished all the cakes given to them.  Each girl ate 3/4 of a cake and they had 3  3/4 cakes left.  How many cakes did Mrs Ho buy for the children?

Please click the following link for suggested solution: Question from Renee 04.05.14

Questions from Joelle

4 May

1. The ratio of the number of Helen’s coloured pencils to the number of Yvonne’s coloured pencils was 3 : 5 at first.  After each of them had received 45 coloured pencils, Helen had 5/8 as many coloured pencils as Yvonne.  Helen then bought another 65 coloured pencils.  How many more coloured pencils did Yvonne have than Helen in the end?
2. An open-air concert ticket for an adult was priced at $85.50. There were 150 more male adults than female adults for the first night concert. For the second night concert, the number of female adults was decreased by 15% and the number of male adults was increased by 30%. If there were 1270 adults in the second night concert, how much more money was collected from the sale of the tickets for the second night concert than the first night concert?
Please click the following link for suggested solution: Questions from Joelle 04.05.14

Questions from Daniel

23 Apr

1. Adeline went shopping with a sum of money.  She spent all her money in two stores.  In each store, she spent $18 more than half of what she had when she entered the store.

(a) How much did Adeline spend at the second store?

(b) How much money did she have at first?


2. At 8.30 a.m., a motorcycle left Town A for Town B travelling at 60 km/h.  1.5 hours later, a car left Town A travelling at 85 km/h.  The car overtook the motorcycle midway between Town A and Town B, and reached Town B first.

(a) Find the distance covered by the motorcycle when the car left Town A.

(b) What was the distance between Town A and Town B?

Please click the following link for suggested solutions: Questions from Daniel 23.04.14