it takes 60 hours for 24 machines to print a book.How many hours will 32 machines takes to print the same book
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Answered by
2
hours. machines book
60. 24. 1
h. 32. 1
(60x24 )/32h=1/1
32h =60×24
h =60x24/32=60×3/4=15×3=45
45 hrs
60. 24. 1
h. 32. 1
(60x24 )/32h=1/1
32h =60×24
h =60x24/32=60×3/4=15×3=45
45 hrs
sahnaz79:
bt ans should be 80
45
Wait I have not understood the question
Are these machines printing only one book??
Yes
So it would be 45
Right?
yes
45 is right ans
thank u
Answered by
1
As, they are in direct propotional,
x1/y1 = x2/y2
x1= 24 x2= 32
y1= 60 y2=?
By substituting the formula,
24/60 = 32/y2
By cross multiplication,
24 y2= 1920
y2 = 1920/24
y2= 80
Therefore, it takes 80 hours for 32 machines to print the same book
They are in inverseproportion
x1/x2=y2/y1
x1=24 x2=32
y1=60 y2=?
By substituting the formula
24/32=y2/60
By cross multiplication
32y2=24×60
32y2=1440
y2=1440/32
y2=45hours
x1/x2=y2/y1
x1=24 x2=32
y1=60 y2=?
By substituting the formula
24/32=y2/60
By cross multiplication
32y2=24×60
32y2=1440
y2=1440/32
y2=45hours
okk
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