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M: +2.50/-0.83

The average rainfall in a city for the first four days was recorded to be 0.40 inch. The rainfall on the last two days was in the ratio of 4 : 3. The average of six days was 0.50 inch. What was the rainfall on the fifth day

[Paper II (CSAT) Analysis 2017]
A
B
C
D

EXPLANATION

Ans (c) Let the rainfall of the nth day be x(n). So, according to first dat...
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