SUB INSPECTOR BS-14 ( OPEN MERIT)

Let Price before sales Tax is = x

price after slaes Tax is  = x + 7% = x + 0.07x= 1.07x

According to Given condition: 1.07x = $22.90

                                                              x = 20.40

                                      

 

 

 

Let: B= x   and A= 2x

(A+B) 18 days work = 1 

(A + B) one day work= 1/18

So:

x + 2x =1/18

⇒     x =  1/54 

So A=27 and B= 54

 

 

Total weight of solution is 8 kg

Sugar % = 10%

Mass of sugar = 10 % 0f 8 = 0.8

Amount of water = Total weight of solution – Mass of sugar

Amount of water = 8 kg – 0.8 kg

Amount of water = 7.2 kg

Now 2 kg is added to the solution

So, new amount of solution = 8 kg +2 kg = 10 kg

So,  the percentage of sugar becomes= 0.8/10 x 100% = 8%

Let the number be x