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Unit 12: Time and choose

Data sufficiency: the five outcomes

Read this before the quizzes

What sufficient means

Test with lists

Value questions: one value or not

A value question: squares

A value question: closing a list

A value question: two unknowns

Answers and why: the five outcomes

Yes or no, word problems and combining

Yes or no: always or never

Combining statements

Word problems: count the unknowns

A yes or no question: parity

A yes or no question: sign

A word problem with two unknowns

Answers and why: yes or no and combining

Comparison and mixed sets

Comparison: try the cases

Switching topics in a mixed set

Read the question before the numbers

Comparison: try cases

Comparison: fractions

Comparison: a fixed perimeter

Answers and why: comparison and mixed sets

The mock plan

A plan for the clock

Skip, guess or stay?

The mock families in this course

Average time per question

The clock of a practice section

Re-planning mid-section

Answers and why: the mock plan

Review, formula cards and habits

Review your mistakes

Eight slips of this unit

The formula cards

Your pace for this unit

The exam-style tally

An all-round check

Answers and why: review and habits

Mission: ask what is enough

Self-check: can you do it?

Data sufficiency, mixed sets and the mocks. This unit has one move: decide what the question needs, then choose how to spend your time.

Quantitative Aptitude Unit 12: Data sufficiency, mixed sets and the mocks

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