Question

4 boys and 6 girls together can complete a piece of work in 15 days while 7 boys and 3 girls together ca complete the work in 12 days. Find in how many days 5 boys and 3 girls together can complete the whol work? 2. 200/19 days 3.295/19 days 4.250/19 days 1.220/19 days 5.160/19 days​

Answer 1

Answer:

4/x+6/y=15

7/x+3/y=12

14/x+6/y=24

-10/x=-9

x=10/9

y=6/15

5boys and 3 girls complete the work in 12days