1. A sum of money is to be distributed among A, B, C, D in the proportion of 5 : 2 : 4 : 3. If C gets Rs 1000 more than D, what is B’s share?
2. Two-third of one-seventh of a number is 87.5% of 48. What is the number?
3. If the length of the rectangle is increased by 7%, then by how much per cent should the breadth be reduced to have no change in area of the rectangle?
4. A person sells 36 oranges per rupee and suffers a loss of 4%. Find how many oranges per rupee to be sold to have a gain of 44%.
5. The average age of a group of person going for picnic is 20 years. Twenty new persons with an average age of 19 years join the group on the spot due to which their average becomes 19.5 years. Find the number of persons initially going for picnic.
6. How many kilograms of tea powder costing Rs. 31 per kg be mixed with 36 kg of tea powder costing Rs. 43 per kg, such that the mixture when sold at Rs. 44 per kg gives profit of 10%?
7. A sum was put at simple interest at a certain rate for 7 years. Had it been put at 2% higher rate, it would have fetched Rs 56 more. Find the sum.
8. The least number of complete years in which a sum of money put out at 20% compound interest will be more than doubled is:
9. If 60 engineers or 120 doctors or 100 teachers can finish a work in 360 days then in how many days will 10 engineers, 40 doctors and 50 teachers working together will complete the same work?
10. Two pipes A and B can fill a tank in 15 hours and 120 hours respectively while a third pipe C can empty the full tank in 25 hours. All the three pipes are opened in the beginning. After 10 hours, C is closed. Now how much time more is required to fill the tank?