A person can do a piece of work in 26 days and an another person can do the same work in 39 days. If they work together, then by what per cent the wages of 1 st person is more than that of 2nd person?

A's 1 day's work = 1/3
B's 1 day's work = 1/4
A's share : B's share
= (1/3) : (1/4) = (4/12) : (3/12)
= 4 : 3
A's share = (4/7) x 2800
= 4 x 400
= ? 1600

The ratio of efficiency of man to boy
= 6 : 1
Efficiency ? Wages
? Boy's share = [1 / (1+6)] x 1400
(1/7) x 1400 = ? 200
Now, they worked for 10 days.
? Daily wages of a boy = 200/10 = ? 20

A's 1 day's work = 1/2
B's 1 day's work = 1/3
A's share : B's share = 1/2 : 1/3 = 3/6 : 2/6 = 3 : 2
A's share (3/5) x 6000 = 3 x 1200 = ? 3600
? 20% of A's share 3600 x (20/100) = ? 720

Vandana's 1 day's work = 1/10
(vandana + Ruchi)'s 1 day work =1/6
? Ruchi's 1 day's work
= 1/6 - 1/10 = (10 - 6)/ (6 x 10) = 4 / 60 = 1/15

? Vandana's share : Ruchi's share
= 1/10 : 1/15 = 3/30 : 2/30 = 3 : 2

Ruchi's share = 2/5 x 200 = ? 80

A's 1 day's work = 1/21
B's day's work = 1/28
? Same money is sufficient to pay the wages of both for
= 1 / [(1/21) + (1/28)] = (21 x 28) / (21 + 28)
= (21 x 28) / 49
= 3 x 4 = 12 days

1 day's work of Amit = 1/12
1 day's work of Vipul = 1/16
1 day's work of Kapil = 1/24
Amit's share : Vipul's share : Kapil's share
= (1/12) : (1/16) : (1/24) = 4/48 : 3/48 : 2/48 = 4 : 3 : 2
Now, Vipul's share = (3/9) x 2700
=3 x 300 = ? 900

Ratio of the wages of A, B and C = 5 : 6 : 4
A's share : B's share : C ' share
= (6 x 5) : (4 x 6) : (9 x 4)
=30 : 24 : 36 = 5 : 4 : 6
? A's share = (5/15) x 1800 = ? 600