Neco 2024 Geography Question 10

Practice objective / multiple choice question 10 from the 2024 Neco Geography examination.

Neco 2024 Geography Objective / Multiple Choice Medium Difficulty
Question 10 NECO • 2024 • GEOGRAPHY • objective

A 200‑kg sample of mixed sedimentary rock consists of 40% limestone, 35% sandstone and the remainder shale. During weathering, limestone loses 10% of its mass, sandstone loses 5%, and shale loses 20%.\n(a) Determine the final mass (kg) of each component after weathering.\n(b) What is the percentage of sandstone in the remaining material (rounded to one decimal place)?

Answer Options

Correct Answer A. 37.3
B. 38.5
C. 35.0
D. 40.2
Correct Answer
A
Correct Option:
37.3

About This Question

This is Neco 2024 Geography Question 10. It is one of the objective questions from the 2024 Neco Geography examination.

Difficulty level: Medium .

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