Consider the array declaration: int sales[5] = {10000, 12000, 900, 500, 20000};
ID: 3586872 • Letter: C
Question
Consider the array declaration:
int sales[5] = {10000, 12000, 900, 500, 20000};
A. the statement sales[3] = sales[3] + 10; will replace the number____
1.500 with 10
2.500 with 510
3.900 with 10
4.900 with 910
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B. The statement sales[4] = sales[4-2]; will replace the number_____
1.500 with 498
2.20000 with 900
3.20000 with 19998
4.500 with 12000
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C. Which of the if-statements verifies that the array subscript stored in the x variable is valid for the sales array?
1. if (x >= 0 && x<4)
2. if (x >= 0 && x <= 4)
3. if (sales[x] >= 0 && sales[x] <4)
4. if (sales[x] >= 0 && sales[x] <=4)
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D. which of the following will correctly add the number 100 to each variable in sales array? x variable is declared as int x=0;
1. while (x<=4)
x += 100;
2. while (x <= 4)
{ sales = sales + 100;
x +=1;
}
3. while (sales < 5)
{ sales[x] +=100;
}
4.while (x <=4)
{ sales[x] += 100;
x += 1;
}
Explanation / Answer
A ) the statement sales[3] = sales[3] + 10; will replace the number____
Ans : 4. ( 900 with 910 ) .
B. The statement sales[4] = sales[4-2]; will replace the number_____
Ans : 4. ( 500 with 12000 ) .
C. Which of the if-statements verifies that the array subscript stored in the x variable is valid for the sales array?
Ans : 4. ( if (sales[x] >= 0 && sales[x] <=4) ) .
D. which of the following will correctly add the number 100 to each variable in sales array? x variable is declared as int x=0;
Ans : 4. ( while (x <=4)
{ sales[x] += 100;
x += 1;
} ) .