A vehicle when climbing up a gradient, consumes petrol at the rate of 1 litre per & kom while coming down it gives 12 kms. per litre. Find its average consumption for to and fro travel between two places situated at the two ends of a 25 km. long gradient. Verify your answer

A vehicle when climbing up a gradient, consumes petrol at the rate of 1 litre per & kom while coming down it gives 12 kms. per litre. Find its average consumption for to and fro travel between two places situated at the two ends of a 25 km. long gradient. Verify your answer

Algebra: Structure And Method, Book 1

(REV)00th Edition

ISBN:9780395977224

Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Chapter12: Quadratic Functions

Section12.8: Joint And Combined Variation

Problem 11P

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Question

A vehicle when climbing up a gradient,
consumes petrol at the rate of 1 litre per & kom
while coming down it gives 12 kms. per litre.
Find its average consumption for to and fro
travel between two places situated at the two
ends of a 25 km. long gradient. Verify your
answer

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