exam Maths Puzzle Numerical Ability

One bacth of dough makes 15 ornaments. How many ornaments can be made with 3 batches of dough?

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exam Other Question

Simplify

3(1-5) - ((1-7)(-5))=
Multiply. Write in simplest form.

-2a^2b^4/22a^5 X 11b^2/b^6