a carpenter charged ₹5000 for making a bed . the cost of materials ised is ₹1400 and the labour charges are ₹300/ hr . For how many hours did the carpenter work?
A carpenter charged ₹5000 for making a bed . The cost of materials used is ₹1400 and the labour charges are ₹300/ hr . For how many hours did the carpenter work?
GIVEN:
A carpenter charged ₹5000 for making a bed
The cost of materials used is ₹1400 and the labour
charges are ₹300/ hr .
R.T.F:
Number of hours took for him to complete his work
SOLUTION:
Let the carpenter’s work per hour be x
Then his labour charge= 300 x
Now,
Total labour charge+cost of materials used = carpenter charged for making a bed
Answer :
Given :
To find :
Solution :
Given , labour charges is ₹300/hr then,
Now ,
》5000 = 1400 + 300x
》300x = 5000 – 1400
》300x = 3600
》x = 3600/300
》x = 12
》12 hours
Hence , Carpenter worked for 12 hours.
Verification :
》5000 = 1400 + 300x
》5000 = 1400 + 300(12)
》5000 = 1400 + 3600
》5000 = 5000
Hence , Verified.
Answer:
QUESTION:
A carpenter charged ₹5000 for making a bed . The cost of materials used is ₹1400 and the labour charges are ₹300/ hr . For how many hours did the carpenter work?
GIVEN:
A carpenter charged ₹5000 for making a bed
The cost of materials used is ₹1400 and the labour
charges are ₹300/ hr .
R.T.F:
Number of hours took for him to complete his work
SOLUTION:
Let the carpenter’s work per hour be x
Then his labour charge= 300 x
Now,
Total labour charge+cost of materials used = carpenter charged for making a bed
[tex]300x+1400=5000 \\ 300x = 5000- 1400 \\ 300x = 3600 \\ x = 12[/tex]
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