Question

1 Identify the variables which are in direct proportion.
a) The quantity of food and its cost.
b) Number of people and consumption of food.
c) The height of a tree and the number of years.
d) The number of notebooks and their cost.
e) Time taken to travel and the distance travelled (keeping speed the same).
f) Funds collected to help earthquake victims and the number of people contributed.
g) Distance travelled by a train and its speed (keeping time the same).
h) The number of people working and the quantity of work (each one doing the same quantity of work).
i) The number of people working and the time to complete a given work.
j) The number of days worked and the quantity of work (keeping number of people the same).
k) Interest on money and the amount invested.
l) Interest and the rate of interest.
m)Commission on sale and amount of sale.
n) Income tax and the income.

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Answer 1

Answer:

a b,c,d,e,f,g,k,l,m,n are in direct proportion but h,i,j are in inverse proportion.

Answer 2

Answer:

indirect proporctio is it righ