9 men and 12 boys finish a job in 12 days 12 men and 12 boys finish into 10 days 10 men and boys shell finish it how many days
Answers
Answered by
1
Answer:
MARK ME AS BRAINILIEST.
Step-by-step explanation:
9M + 12B ----- 12 days ...(1)
12M + 12B ------- 10 days....(2)
10M + 10B -------?
108M + 144B = 120M +120B
24B = 12M => 1M = 2B...(3)
From (1) & (3)
18B + 12B = 30B ---- 12 days
20B + 10B = 30B -----? => 12 days.
Answered by
0
Answer:
let men be x
let boy be y
9x+12y=12
12x+12y=10
therefore they finish it in 10 days
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