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TOPIC: P3 Rosyth Sch SA2: Patterns

P3 Rosyth Sch SA2: Patterns 9 years 11 months ago #1

  • Eng Guan Seah
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Please see attached. Thanks.

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Re:Maths P3 - 9 years 11 months ago #2

  • yhlee
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If i am not wrong it is 59 :)
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Re:Maths P3 - 9 years 11 months ago #3

  • Saraswathi
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I think answer is 63
That is 21x3
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Re:Maths P3 - 9 years 11 months ago #4

  • Chris Rogers
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I believe it to 59 as well.

How?

Left side --> 3,4,5 (plus 1)
Top --> 9,16,25 (square numbers or 3x3,4x4,5x5)
Right --> 7, 13, 21 (9-7=2,16-13=3,25-21=4)
Bottom --> 7, 26, ?

From the first set, 9+7+7+3=26
From the second set, 16+4+13+26=59
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Re:Maths P3 - 9 years 11 months ago #5

  • Eng Guan Seah
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Sorry for the delay. The answer is 63
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Re:Maths P3 - 9 years 11 months ago #6

  • yhlee
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i think there may be two answer or two ways to do this question.one is ur way one is chris Roger way but the problem is the answer is different...
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P3 Maths 9 years 11 months ago #7

  • Perseverance
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Left side (1st square)
3x?=9
?=3
9-?=7
?=2
7x?=7
?=1

Note: 3, 2 and 1.

Middle square
4x?=16
?=4
16-?=13
?=3
13x?=26
?=2

Note: 4, 3 and 2

Right side (1st square)
5x?=25
?=5
25-?=21
?=4
21x?=Answer
?=3
21x3=63

Note: 5, 4 and 3

Answer = 63

PS: Pls advise the worked solution given by your school teacher?
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Re:P3 - Patterns 9 years 11 months ago #8

  • Eng Guan Seah
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I don't have the solution, is Rosyth Sch SA2, 2009 paper
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Re:P3 - Patterns 9 years 11 months ago #9

  • Chris Rogers
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Answer is 63. Thus the solution that Perseverance has provided should be the correct solution.
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Re:P3 Rosyth Sch SA2: Patterns 9 years 11 months ago #10

  • Eng Guan Seah
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Thanks everyone.
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