Question

6. In a camp 1500 students have provisions for
16 days. At the end of 4 days, 300 students
leave the camp. How long will the provision
now last?
7. A can do a piece of work in 12 days and B
can do the same work in 20 days. They work
together for 3 days and then A goes away. In
how many more days will B finish the work?
PLEASE ANSWER THE QUESTIOQUESTIONI WILL MARK THE ANSWER AS BRAINLIST​

Answer 1

Step-by-step explanation:

I don't forgetting question 6

so I do question 7

a=12

b=20

LCM of a and b is 60

the total work is 60

a=60/12=5

b=60/20=3

a do 5 work in a day

b do 3 work in a day

a+b

5+3=8

the work three days

8*3=24 work was completed in three days

60-24=36 work is remaning

36/b=36/3=12 days b complete the remaning work Ans

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