1) the amount of work in a leather factory is increased by 50% . by what percent is it necessary to increase the number of workers to complete the new amount of work in previously planned time, if the productivity of the new labour is 25% more .

2) in a village three people contested for the post of village pradhan . due to their own interest, all the voters voted and no one vote was invalid. the losing candidate got 30% votes. what could be the minimum absolute margin of votes by which the winning candidate led by the nearest rival , if each candidate got an integral percent of votes .

3) A tank is connected with 8 pipes . some of them are inlet pipes and rest work as outlet pipes. each of the inlet pipe can fill the tank in 8 hours , individually , while each of those that empty the tank i.e., outlet pipe, can empty it in 6 hours individually . if all the pipes are kept open when the tank is full , it will take exactly 6 hour for the tank to empty . how many of these are inlet pipes .

4) Ram and Rohit are two different persons, but when they worked together , they complete it in 10days . had Ram worked at half of his efficiency and rohit at five times of his efficiency it would have taken them to finish the job in 50% of the scheduled time . in how many days rohit can complete the job working alone ?

5) A gun is fired at a distance of 3.32 km away from Rohit. He hears the sound 10 seconds later. Find the speed of the sound.

Directions for questions 6 to 9: Answer the following questions based on the information given below.
An athletics coach was trying to make an energy
drink which is best suited for the athletes. For this
purpose he took five of the best known energy drinks
– A, B, C, D and E in the market with the idea of
mixing them to get the result he desired. The table
below gives the composition of these drinks. The cost
of each of these energy drinks per litre is A – 150,
B – 50, C – 200 D – 500 and E – 100.

6) For the sprinters, he has to prepare a drink containing 10% minerals and at least 30% protein.
In how many different ways can we prepare this drink by mixing at least two ingredients?

7) Which among the following is the combination having the lowest cost per unit for a drink having
10% fat and at least 30% proteins? The drink has to be formed by mixing two ingredients together.

8) In what proportion should B, C and E be mixed
to make a drink having at least 60% carbohydrate at the lowest cost per unit?

9) A drink containing 30% each of carbohydrate and
protein, no more than 25% fat and at least 5% minerals is to be made. Which of the following two drinks must be mixed in equal quantities to obtain the required drink?