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When the integers from 1 to 30 are multiplied, determine how many consecutive digits starting from the ones (1s) position are zeros.

unemasculated mathematics befitting school years 6, 7 & 8 ~ or thereabouts

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When the integers from 1 to 30 are multiplied, determine how many consecutive digits starting from the ones (1s) position are zeros.

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In the diagram, two straight lines are drawn on a 1 cm grid.

Determine the area of △ABC.

(from Twitter)

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100 students were surveyed about their preferences for bell peppers (capsicum), carrots and spinach, with the following results:

① 72 students said they like bell peppers, and 36 students said they like only bell peppers.

② 41 students said they like carrots, and 9 students said they like only carrots.

③ 31 students said they like spinach, and 3 students said they like only spinach.

④ 9 students said they like neither bell peppers, nor carrots, nor spinach.

Answer the following questions:

⒜ Amongst bell peppers, carrots and spinach, determine how many students like 2 or more.

⒝ Determine how many students like both carrots and spinach, but not bell peppers.

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