AQuA-RAT test #228 · Algebra · Algebra word problems
A box contains a certain number of balls, marked successively from 1…
A box contains a certain number of balls, marked successively from 1 to n. If there are 45 different ways that two balls can be selected from the box such that the ball with number 3 marked on it is not selected, then what is the value of n?
AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · test #228
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