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Maths Tuition Singapore – Interest Rate   The cash price of a 70 inches TV is $7,000. Mr Tan bought the TV on hire purchase by putting a downpayment of $1,000 and monthly instalments of $150 over y months. (a) Express the total amount payable by hire purchase, in terms of y.       Express, in terms of y, the amount Mr Tan could have saved if he had paid in full by cash. (b) Given that the seller charged simple interest at 10% per annum, form an equation to calculate the value of y.   Answer (a) $ (150y – 6000) (b) y = 60    Please contact Angie @ 96790479 or Mr Ong @ 98639633 if you need Secondary 1 to 4 Maths Tuition  

Biology Tuition Singapore – Enzymes Misconception   Misconception 1 Rate of reaction is expressed as T, where T represents time. Correct Concept Rate of reaction is expressed as 1/T, where T represents the time required for the enzyme to finish catalysing a reaction.   Misconception 2 As the temperature keeps increasing, the activity level of enzymes also increases indefinitely. Correct Concept Enzymes are proteins. As the temperature increases, the enzymes affected will become denatured, i.e., lose their original shape. Then they will no longer be effective and their activity may even drop to zero   Misconception 3 As long as the enzyme is still active, the reaction will proceed. Correct Concept There is a physical limit on the number of active sites that can bond wit ...

Physics Tuition Singapore – Turning Effect of Forces Misconception     Misconception 1 Since moment is a vector quantity, its direction can also be described similar to other vector quantities such as velocity. Therefore, we can describe the direction of a moment as to the North. Correct Concept Moment is a type of vector quantity different from other vector quantities such as velocity. Its direction is simply described by a rotational direction (i.e., clockwise or anticlockwise) and not by a linear direction (i.e., up, left, North etc).   Misconception 2 A see-saw always tilts towards the heavier person. Correct Concept A see-saw does riot always tilt towards the heavier person. The direction of tilt corresponds to the direction of net moment which also depends on the ...

Chemistry Tuition Singapore – Chemical Bonding Misconception   Misconception 1 Atoms gain or lose electrons to become noble gases. Correct Concept Atoms gain or lose electrons to obtain noble gas structures.   Misconception 2 Simple covalent molecules have low melting and boiling points because covalent bonds are weak. Correct Concept The covalent bonds within the molecule are strong. Simple covalent molecules have low melting and boiling points because the attractive forces between the covalent molecules are weak   Please contact Angie @ 96790479 or Mr Ong @ 98639633 if you need O level and N level Chemistry Tuition          

Primary English Tuition Singapore- Grammar   Q1. If you____________ the gong yesterday, the baby_____________ up. (1) did not strike…would not wake (2) have not struck.. will not wake (3) did not strike…will not have woken (4) had not struck…would not have woken   Q2. Keep this secret ________ yourself. I have told no one else about it and I do not wish anyone to know about it. (1) by (2) to (3) in (4) for   Answers: Q1 – (4) , Q2 –  (4)   Please contact Angie @ 96790479 or Mr Ong @ 98639633 if you need Primary 1 to 6 English Tuition