Question

Part 1

1. A tailor wants to make square shaped towels. The required squared pieces of cloth will be cut from a ream of cloth which is 20 meters in length and 16 meters in width.
a) Find the minimum number of squared pieces that can be cut from the ream of cloth without wasting any cloth.
b) Briefly explain the technique you used to solve (a).

2. On the first day of the month, 4 customers come to a restaurant. Afterwards, those 4 customers come to the same restaurant once in 2,4,6 and 8 days respectively.
a) On which day of the month, will all the four customers come back to the restaurant together?
b) Briefly explain the technique you used to solve (a).
Part 2

3. Logs are stacked in a pile with 24 logs on the bottom row and 10 on the top row. There are 15 rows in all with each row having one more log than the one above it.
a) How many logs are in the stack?
b) Briefly explain the technique you used to solve (a).

4. A company is offering a job with a salary of Rs. 50,000.00 for the first year and a 4% raise each year after that. If that 4% raise continues every year,
a) Find the total amount of money an employee would earn in a 10-years career.
b) Briefly explain the technique you used to solve (a).

Part 3

5. Define the multiplicative inverse in modular arithmetic and identify the multiplicative inverse of 6 mod 13 while explaining the algorithm used.

6. Prime numbers are important to many fields. In the computing field also prime numbers are applied. Provide examples and in detail explain how prime numbers are important in the field of computing.

Answer 1

Answer:

------A river delta is a landform created by deposition of sediment that is carried by a river as the flow leaves its mouth and enters slower-moving or stagnant water. This occurs where a river enters an ocean, sea, estuary, lake, reservoir, or another river that cannot carry away the supplied sediment-

Step-by-step explanation:

------------------------A river delta is a landform created by deposition of sediment that is carried by a river as the flow leaves its mouth and enters slower-moving or stagnant water. This occurs where a river enters an ocean, sea, estuary, lake, reservoir, or another river that cannot carry away the supplied sediment