The cost of pencil is rupees 3. what is the cost of 10 such pencils. what is the cost of 20 such pencils? Are the number of pencils and total cost in proportion?What is the constant of proportionality?
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Answered by
2
Answer:
Hi mate nice to meet you
HERE is your answer
Given,
The cost of 1pencil is Rs. 3
Then cost of 10pencils is 10*3=30/-
The cost of 20pencils is 3*20=60/-
Yes they are in proportion
3:30 =1:10
3:60 =1:20
HOPE THIS HELPED YOU DEAR
Answered by
1
Step-by-step explanation:
cost of 1 pencil is Rs3
cost of 10pencils=3*10=30
cost of 20 pencils=3*20=60
therefore the number of pencils and total
cost are in proportion
the constant proportion is 10
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