+2 votes
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in Class VIII Maths by Basic (20 points)

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2 Answers

+4 votes
by Basic (45 points)
they will take 30 days
by Basic (20 points)
wrong answer
0 votes
by Expert (2.2k points)
15x = 1

x = 15/1

20y = 1

y = 1/20

25z=1

z = 1/25

So,
d(x+y+z) = 1

d = 1/15+20+25) = 300 / 47 = 6 days

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