A) 4
B) 5
C) 7
D) 6
Correct Answer: A
Solution :
\[23+28\div \_\_\_\_=30.\] In the equation, we need to divide a number by 28 and then add it to 23 +o obtain the result equal to 30. Now in order to get 30, we need to add 7 to 23, which can be obtained by dividing 28 by 4. Thus the equation should be \[23+28\div 4=30.\]You need to login to perform this action.
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