15 men, 18 women and 12 boys working together earned Tk. 2070. If the daily wages of a man, a woman and a boy are in the ratio of 4 : 3 : 2, the daily wage (in Tk) of 1 man, 2 women and 3 boys are -

Let,
the daily wage of a man, a woman and a boy be Tk. 4x, Tk. 3x and Tk. 2x respectively.
Then, 15 × 4x + 18 × 3x + 12 × 2x = 2070
⇒ 60x + 54x + 24x = 2070
⇒ 138x = 2070
⇒ x = 15
∴ daily wages of 1 man, 2 women and 3 boys
= Tk. (4x + 2 × 3x + 3 × 2x)
= Tk. (4x + 6x + 6x)
= Tk. 16x
= Tk. (16 × 15)
= Tk. 240.