SOLUTION: i need some real world situations that involve ratio and proportions

Question 392553: i need some real world situations that involve ratio and proportions

Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!

A bag contains one rupee,50 paise and 25 paise coins in the ratio 1:2:4.If the
total amount is Rs 75,then find the number of 50 paise coins in the bag
a)25 b)50 c)75 d)100
The present ages of two persons are in the ratio 7:8.Twenty years ago the ratio of their ages was 9:11.Find the present age of the older son
a)64 years b)72 years c)56 years d)40 years
The ratio between two number is 3:5 and their is 40.Find the larger of two numbers
a)15 b)20 c)25 d)40

A variable x varies directly as the cube of another variable y.if x=4,y=2,then find y when x = 32
a)4 b)8 c)16 d)32
The volume of a shere varies directly as the cube of its radius.If three cubes of radii 3cm,4 cm and 5 cm are melted and recast into one sphere,then find the radius of the sphere
a)5.5 cm b)6 cm c)7 cm d)7.5 cm

These are the some of the problems put in by students
...
m.ananth@hotmail.ca
RELATED QUESTIONS
I need help with evaluating exponential functions in real world situations. How do you... (answered by josgarithmetic)

we learn units after units in Math class...but when are we ever going to use this in real (answered by Alan3354)

I need some help on this real-world function please... (answered by josgarithmetic,MathLover1)

Hi. I'm reviewing for my upcoming test in math and I am not really sure how to answer... (answered by subudear)

Direction: Represent a real-life situations using piece-wise function. 1. Provide a... (answered by josgarithmetic)

need to come up with a real world problem that can be solved using one of the 12 basic... (answered by stanbon)

What is the difference between exponential growth and logistic growth? What are some... (answered by rothauserc)

Write a paper about systems of equations. You need to find a real world situation... (answered by solver91311)

we are doing problem that involve substitution and the problem is y=3x+4 6x-2y=4 i... (answered by stanbon)