Exercise 11B
1 Identify the variables which are in direct proportion.
a The quantity of food and its 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.
Distance travelled by a train and its speed (keeping time the same).
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New Enjoying Mathematics 8
b Number of people and consumption of food.
The height of a tree and the number of years. d The number of notebooks and their cost.
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Step-by-step explanation:
the tree becomes give food , and the food cost of Rs 50 , and The Note book also cost of Rs 50
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