Maths / Direct and Inverse Variation / Time and Work

QUESTION
 

6 men can complete the electric fitting in a building in 7 days. How many days are required if 21 men do the job?

OPTIONS
A. 

1 day

B. 

3 days

C. 

2 days

D. 

2.5 days

Right Option : C

EXPLANATION
Explain TypeExplanation Content
Text

According to question

6 ; men;can;complete;the;electric;fitting;in;a;building=7;days 1 ; men;can;complete;the;electric;fitting;in;a;building=6times 7=42;days 21 ; men;can;complete;the;electric;fitting;in;a;building=frac{42}{21}=2;days

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