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OLEVEL E. MATH TOPICAL CRASH COURSE

OLEVEL A. MATH TOPICAL CRASH COURSE

OLEVEL PHYSICS TOPICAL CRASH COURSE
1) sqrt (0.48), 0.702, 27/38, 0.61
2) 3.90 swiss francs
3a) 629.25
3b) 630
4) 47.9 deg or 132.1 deg (or 0.836 rad or 2.31 rad)
5) zero hours not offered; the choices given for the intervals for the number of hours spent are not continuous; time limit, such as per day or per week, not set.
6) – 1/3 (corrected)
7) 112
8) 79.4%
9a) 1000
9b) 200%
10a) 32 sec
10b) 7.5 sec
11) $78.50
12) x = 3 cm, y = 5 cm, z = 15 cm
13) $7500
14a) 1/3 (b – a)
14b) vector DC cannot be expressed as k(vector OA), so vectors DC and OA are not parallel.
15a) Two circles overlapping
15b) {4,6,7,8,9,10,11}
16a) 3b^5/2a
16b) (8x5)/(x3)^2
17a) a = 5, b = 19, c = 26
17b) 7n – 2
c) There is no integer value of n such that 7n2 = 109
18a) 8 11/18 m/s
18b) 9 min 43 sec
19a) graph curves upwards, passes thru origin
19b) s = 2.25 t^2
19c) 2.98 sec
20a) 1/4
20b) 1/16
20c) 55/64
21ai) (2.6 4.3 6.8) as in 3×1 matrix
21aii) E = (151.4 135.4) as in 2×1 matrix
21aiii) It represents the masses of the coins saved by Lin and Hadi respectively
21b) (10 20 100) as in 3×1 matrix
22) $644.17
23a) 314 cm^2
23b) 5 cm by 7 cm by 11 cm
23c) 42
24a) 9(x1)
24b) 57 cm
24c) 196 cm^2
Ad hoc O Level Math or Physics Tuition from 20 Oct to 26 Oct 2014
Suggested answers to GCE O Level 2014 Math (4016) Paper 2
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qn 6 should be 1/3. The question was 4×64^n=1.
If the questions is as you said, yes, the answer should be 1/3.
What was the question for 22?
I don’t have the question. These answers were obtained from several sources.
for question 2, the question gave the swiss francs currency in 3dp. should my answer follow the 3dp as stated, or 3sf?
The rule for Math papers is that if the answer (other than angles and bearings) is exact (terminates), leave it as it is, even if it is more than 3dp. If the answer is irrational (a nonterminating and nonrecurring decimal), give it in 3SF.
For qn 23b, is it okay if i wrote the ans as 11cm by 7cm by 5cm?
should be ok, unless the question specifies the order.
For the pendant qs why is the answer $644.17? Shouldn’t the answer be $644.16?
I’m not able to answer as I don’t know the question. All these answers I’ve put up are obtained from various students. It’ll be good if someone can remember the question and put it up here. For money problems, all working should be in more than 2 dp so that the final answer can be in 2 dp if not exact. But if exact must be left as it is, even if it is $644.1645 for example.
I believe the arrangement for qs 1 is wrong XD
Really? I shall let others comment as I don’t have the qn. : )
the working got mark? if the answer calculate worngly
If it’s a 1 mark question, no marks for working. Similarly for questions that begin with “State”.
IF this is correct.I am gonna die die liao.Two question wrong，what is wrong with me ….. For english paper that was a nightmare.I was having a favor.I dunno what I was doing and felt like I was in the Fire. Luckily I still finished whole paper but it must be …….Jesus Christ o level die already. For writing section C I did not understand my chose topic correctly so the 30 marks will gone.Cannot imagine what my parents would do when results release.Dont have any confidence to continue following exam liao…..die die .
For question 16(a) the answer stated is 3b^5/2a. I wrote 3/2 a^1 b^5. It’s essentially the same answer, just in a different form. Do you think they’ll minus mark for this? This question is 1 mark. It asks to simplify the expression.
Yes, you will not get the full mark. In general, there should be no negative powers in math answers. An expression that has a negative power is not considered simplified.
Shouldn’t the ans for 18b be 9.44? Cause it should be rounded up so that the train passes by the tunnel in full..
You mean 9 min 44 sec? Pls note 9.44 min is not equal to 9 min 44 sec. Anyone can post the question here? Thank you.
Yes , 9min 44sec