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An aeroplane flies against the wind from town Alpha to town Beta in 8 hours. The same aeroplane returns from town Beta to town Alpha in the same direction as the wind, in 7 hours. The ratio of the speed of the aeroplane (in still air) to the speed of wind is ... A) 3:5 B) 8:7 C) 15:1 D) 1:15

An aeroplane flies against the wind from town Alpha to town Beta in 8 hours. The same aeroplane returns from town Beta to town Alpha in the same direction as the wind, in 7 hours. The ratio of the speed of the aeroplane (in still air) to the speed of wind is ... A) 3:5 B) 8:7 C) 15:1 D) 1:15

Calculus: Early Transcendentals
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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An aeroplane flies against the wind from town Alpha to town Beta in 8 hours. The same aeroplane returns from town Beta to town Alpha in the same direction as the wind, in 7 hours. The ratio of the speed of the aeroplane (in still air) to the speed of wind is ... A) 3:5 B) 8:7 C) 15:1 D) 1:15
Transcribed Image Text:An aeroplane flies against the wind from town Alpha to town Beta in 8 hours. The same aeroplane returns from town Beta to town Alpha in the same direction as the wind, in 7 hours. The ratio of the speed of the aeroplane (in still air) to the speed of wind is ... A) 3:5 B) 8:7 C) 15:1 D) 1:15
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