Here is another problem.

Question

Kendra was asked to find the number of students who planned to attend the evening symphony performance. She was told that 40 percent of the 50 students planned to attend. Kendra’s work is shown below. 



What mistake did Kendra make?   

Kendra should have multiplied by 4 instead of multiplying by 2.

Kendra should have divided by 2 instead of multiplying by 2.

Kendra should have added 40 and 50.

Kendra should have subtracted 40 from 50.

A.

B.

C.

D.

Answer 1

40% of 50 students=40/100*50=40/2=20 students. So Kendra should have divided by 2:

40/100=(40÷2)/(100÷2)=20/50=(part)/(whole).

Answer 2

Its not d or c because its says add and subtrack its not b eather because its says divide when u dotn divide so ur best answer is a