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48
M: +2.50/-0.83

When a runner was crossing the 12 km mark, she was informed that she had completed only 80% of the race. How many kilometres was the runner supposed to run in this event?

[Paper II (CSAT) Analysis 2019]
A
B
C
D

EXPLANATION

Answer is (b). This can be solved mentally. 12 km is 8/10 = 4/5 of the whol...
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