Write an integer for the following:
1) Father deposits Rs. 2000 in bank. ____
2) Mother withdraws Rs. 1500 from ATM. ____
3) 300 calories are increasing by consuming junk food. ____
4) 400 calories are decreasing by doing exercise. ____
5) Difference between the boiling point of water and freezing point of water. ____
Answer (2)
The integers representing the described scenarios are: +2000 for the deposit, -1500 for the withdrawal, +300 for calorie increase, -400 for calorie decrease, and +100 for the temperature difference. Each situation is represented in terms of positive or negative values based on whether they indicate an increase or decrease. Calculations are straightforward and based on simple arithmetic.
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To write integers that represent different scenarios, we need to understand whether the situation involves an increase or decrease in quantity. Positive integers usually represent an increase, whereas negative integers represent a decrease. Let's analyze each statement:
Father deposits Rs. 2000 in bank.
Integer Representation: When money is deposited into a bank account, the account balance increases. Therefore, this can be represented by the positive integer +2000 .
Mother withdraws Rs. 1500 from ATM.
Integer Representation: Withdrawing money from an ATM means the account balance decreases. Thus, this can be represented by the negative integer -1500 .
300 calories are increasing by consuming junk food.
Integer Representation: Consuming junk food increases the number of calories. Therefore, this can be represented by the positive integer +300 .
400 calories are decreasing by doing exercise.
Integer Representation: Doing exercise decreases the number of calories, which can be represented by the negative integer -400 .
Difference between the boiling point of water and freezing point of water.
Integer Representation: The boiling point of water is 100°C and the freezing point is 0°C. The difference can be calculated as 100°C - 0°C = +100 . Hence, the integer is +100 .
