3 men and 10 boys finish a job in 9 days, 7 men and 7 boys finish it in 8 days. 9 men and 9 boys shall finish it in how many days?
Choose the correct option
A) 18	B) 09	C) 07	D) 19	E) 12
3 M + 10 09 ----- 09 days   7 M + 7 09 ------- 8 days   9 M + 9 09 -------?   21 M + 70 09 = 63 M +63 09   7 09= 42 M =&gt; 6 M = 1 09 =&gt;1 09 =6 M   3 M + 60 M = 63 M ---- 9 days   9 M + 54 M = 63 M -----? =&gt; 9 days   Answer: 09
<result>B</result>
3 men and 10 boys finish a job in 9 days, 7 men and 7 boys finish it in 8 days. 9 men and 9 boys shall finish it in how many days?