@waqar
well they have actually got one question wrong in the Quantitative section of the model paper

A contractor has to build a bridge in 50 days. Initially he employed 20 men, but found that only half of the work has been completed in 30 days. How many more men he has to employ to finish the job in time?

0.5/(20*30)=0.5(x*20) (assuming that all the men work at same rates)

the answer should be 30 but if you see the model paper the answer is marked 10

thanks Ammara and Lord for ur responses too