An established underworld don, Ibrahim Lala reduces the number of his goons in the ratio 8 : 9 and increases the wages in the ratio of 14 : 15 . Find in what ratio the wage bill is increased or decreased and find the difference in the amount of bill, if it was previously Rs 1890
1). 100
2). 95
3). 90
4). 80
Ratio of decrease of employees = 9 : 8
Ratio of increase of wages = 14 : 15
∴ Ratio of increase in the wage bill = ( 9 x 14) : (8 x 15 ) = 126 : 120 = 21 : 20
Now, if the previous wage bill is Rs 21
Then difference of two wage bills = 21 – 20 = Rs. 1
∴ If previous wage bill is Rs 1890
∴ Difference in bills = (1/21) x 1890 = Rs 90