If it has rained 276 mm in the last 3 days, how many cm of rain will fall in one full week (7 days)? Assume that the rain continues to fall at the same rate.
It is given in the question that,
Measure of rain in 3 days = 276 mm
Therefore,
Measure of rain in 1 day = 
= 92 mm
Hence,
Measure of rain in 7 days = 92 × 7 = 644 mm
16