PrimaryOne's answer to Lin's Primary 5 Maths Whole Numbers Singapore question.
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94.
Every pattern set has three 2s. Total even in one set is 6. If total is 80 then there will be 13 sets of pattern and another 2 ( remainder)
80 / 6 = 13 R 2
13 x 7 number in every pattern set = 91
Last digit is 1. At the same time we also need another 2 ( remainder mentioned above)
(1 2 1) = 3 numbers
91+3=94
Every pattern set has three 2s. Total even in one set is 6. If total is 80 then there will be 13 sets of pattern and another 2 ( remainder)
80 / 6 = 13 R 2
13 x 7 number in every pattern set = 91
Last digit is 1. At the same time we also need another 2 ( remainder mentioned above)
(1 2 1) = 3 numbers
91+3=94
Date Posted:
1 year ago
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