A company employed 200 workers to complete a certain work in...

A company employed 200 workers to complete a certain work in 150 days. If only $\frac{1}{4}$ th of the work had been done in 50 days, then in order to complete the whole work in time, the number of additional workers to be employed were?

Course Name: Quantitative Aptitude

1] 100
2] 600
3] 300
4] 200

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1 Discuss	If p men working p hours per day for p days produce p units of work, then the units of work produced by n men working n hours a day for days is = ? 1] $\frac{{{{ \text{p}}^{ \text{2}}}}}{{{{ \text{n}}^{ \text{2}}}}}$ 2] $\frac{{{{ \text{p}}^{ \text{3}}}}}{{{{ \text{n}}^{ \text{2}}}}}$ 3] $\frac{{{{ \text{n}}^{ \text{2}}}}}{{{{ \text{p}}^{ \text{2}}}}}$ 4] $\frac{{{{ \text{n}}^{ \text{3}}}}}{{{{ \text{p}}^{ \text{2}}}}}$ Solution
10 Discuss	At a Tech Pvt Ltd. there are some engineering students employed as trainee engineers, belong to two eminent institutions of India. One group belongs to IIT and another to NIT. Each student of IIT works for 10 hours a day till 60 days and each student of NIT works for 8 hours a day till 80 days on the two same project. The ratio of students of IIT and that of NIT is 4:5 respectively. Students of which institution is slower in work and by how much? 1] IITian is 20% less efficient 2] NITian is 33.33% less efficien 3] NIT is 25% less efficient 4] IIT is 33.33% less efficient 5] Cannot be determined Solution
2 Discuss	12 monkeys can eat 12 bananas in 12 minutes. In how many minutes can 4 monkeys eat 4 bananas ? 1] 4 minutes 2] 10 minutes 3] 12 minutes 4] 8 minutes Solution
3 Discuss	Two pipes, P and Q can fill a cistern in 12 and 15 minutes respectively. Both are opened together, but at the end of 3 minutes, P is turned off. In how many more minutes will Q fill the cistern? 1] 7 minutes 2] $7\frac{1}{2}$ minutes 3] 8 minutes 4] $8\frac{1}{4}$ minutes Solution
4 Discuss	X alone can complete a piece of work in 40 days. He worked for 8 days and left. Y alone completed the remaining work in 16 days. How long would X and Y together take to complete the work ? 1] $13\frac{1}{3}{ \text{days}}$ 2] 14 days 3] 15 days 4] $16\frac{2}{3}{ \text{days}}$ Solution
5 Discuss	If 2 men or 3 women or 4 boys can do a piece of work in 52 days, then the same piece of work will be done by 1 man, 1 woman and 1 boy in: 1] 48 days 2] 36 days 3] 45 days 4] 50 days Solution
6 Discuss	60 men could complete a piece of work in 250 days. They worked together for 200 days. After that work had to be stopped for 10 days due to bad weather. How many more men should be engaged to complete the work in time ? 1] 10 2] 15 3] 18 4] 20 Solution
7 Discuss	A and B together can complete a particular task in 4 days. If A alone can complete the same task in 12 days. How many days will B take to complete the task if he works alone? 1] 9 days 2] 7 days 3] 5 days 4] 3 days 5] None of these Solution
8 Discuss	If 12 carpenters working 6 hours a day can make 460 chairs in 240 days, then number of chairs made by 18 carpenters in 360 days each working 8 hours a day ? 1] 1320 2] 1380 3] 1260 4] 920 Solution
9 Discuss	A can do a certain work in 12 days. B is 60% more efficient then A. How many days will B and A together take to do the same job? 1] $\frac{{80}}{{13}}{ \text{days}}$ 2] $\frac{{70}}{{13}}{ \text{days}}$ 3] $\frac{{75}}{{13}}{ \text{days}}$ 4] $\frac{{60}}{{13}}{ \text{days}}$ Solution
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