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Answer to Q79

[6, 7, 11, 20] [5, 3, 2] [x, 4] [10]. What is x?

Let's rewrite the series like this:

[A, B, C, D] [E, F, G] [H, I] [J]

Then:
E, A, B
F, B, C
G, C, D
H, E, F
I, F, G
J, H, I
all forms sub - series.

Let's test the theory,
5, 6, 7 that's a series with difference of 1

3, 7, 11 that's a series with difference of 4

2, 11, 20 that's a series with difference of 9

x, 5, 3 (5 and 3 has a difference of 2 so x should be 5 + 2 = 7)

4, 3, 2 that's a series with difference of -1

10, x, 4 (10 - 4 is 6 so the difference here can only be 6 ÷ 2 = 3) so series becomes 10, 7, 4. x was also 7 in our x, 5, 3 which means we are correct.

Answer: 7



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Answer to Q79

[6, 7, 11, 20] [5, 3, 2] [x, 4] [10]. What is x?

Let's rewrite the series like this:

[A, B, C, D] [E, F, G] [H, I] [J]

Then:
E, A, B
F, B, C
G, C, D
H, E, F
I, F, G
J, H, I
all forms sub - series.

Let's test the theory,
5, 6, 7 that's a series with difference of 1

3, 7, 11 that's a series with difference of 4

2, 11, 20 that's a series with difference of 9

x, 5, 3 (5 and 3 has a difference of 2 so x should be 5 + 2 = 7)

4, 3, 2 that's a series with difference of -1

10, x, 4 (10 - 4 is 6 so the difference here can only be 6 ÷ 2 = 3) so series becomes 10, 7, 4. x was also 7 in our x, 5, 3 which means we are correct.

Answer: 7

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The Singapore stock market has alternated between positive and negative finishes through the last five trading days since the end of the two-day winning streak in which it had added more than a dozen points or 0.4 percent. The Straits Times Index now sits just above the 3,060-point plateau and it's likely to see a narrow trading range on Monday.

The global forecast for the Asian markets is murky following recent volatility, with crude oil prices providing support in what has been an otherwise tough month. The European markets were down and the U.S. bourses were mixed and flat and the Asian markets figure to split the difference.The TSE finished modestly lower on Friday following losses from the financial shares and property stocks.For the day, the index sank 15.09 points or 0.49 percent to finish at 3,061.35 after trading between 3,057.84 and 3,089.78. Volume was 1.39 billion shares worth 1.30 billion Singapore dollars. There were 285 decliners and 184 gainers.

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