It would be B, I’m pretty sure. Because 1 is not really considered a common factor, because it doesn’t change the expression. 2 doesn’t go into 5, and nor does 5 into two. So she is correct, that there is no common factors between the two.
Well on the second picture your answer is A
2. is B
Answer:
The no. of days required to finish the work = 10 days
Step-by-step explanation:
<u>In first case :-</u>
No. of workers = 10
No. of days = 5
No. of hours taken = 2 hours
<u>In second case :-</u>
No. of workers = 2
No. of days = ??
No. of hours taken = 5 hours
We know that
⇒ =
⇒ Put all the values in above formula we get
⇒ 10 × 5 × 2 = 2 × × 5
⇒ = 10 days
Thus the no. of days required to finish the work = 10 days