Jevonne Liew's answer to A's Primary 6 Maths question.
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simply multiply the 2 numbers together. Eg, for qn69 3x4=12 so every 12 is the common board they will land together. (12, 24, 36)
qn70 similarly, 3x5=15 so every 15seconds the two bells will ring tgt (15,30,45,60)
qn70 similarly, 3x5=15 so every 15seconds the two bells will ring tgt (15,30,45,60)
Date Posted:
7 years ago
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