The following rainfall (in millimetres) was recorded for the first six months of the year in a district: January (120) mm, February (85) mm, March (95) mm, April (110) mm, May (130) mm, June (150) mm. The district's long‑term average annual rainfall is (1,400) mm.

(a) Determine the average monthly rainfall based on the annual average.
(b) List the months whose rainfall is below this average monthly value.
(c) Calculate the total rainfall deficit for those months, i.e., the sum of the differences between the average monthly rainfall and the actual rainfall for each below‑average month. Give your answer to the nearest millimetre.

Question

The following rainfall (in millimetres) was recorded for the first six months of the year in a district: January (120) mm, February (85) mm, March (95) mm, April (110) mm, May (130) mm, June (150) mm. The district's long‑term average annual rainfall is (1,400) mm.

(a) Determine the average monthly rainfall based on the annual average.
(b) List the months whose rainfall is below this average monthly value.
(c) Calculate the total rainfall deficit for those months, i.e., the sum of the differences between the average monthly rainfall and the actual rainfall for each below‑average month. Give your answer to the nearest millimetre.

Accepted Answer

February, March and April; total deficit = 60 mm

Neco Model Questions Vol1 2025 Geography Question 43

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