Adam has 5 cards and the average is 60. We dont know which number each card has. Emma takes one of Adam's card. She takes the card with the lowest number. Now Adam has 4 cards and the average is 67. What number has the card that Emma took?

32

Step-by-step explanation:

if the average of 5 cards is 60 then 5 x 60 = 300 is the total of the 5 cards.

If he average of 4 cards is 67 then 4 x 67 = 268 is the total of the 4 cards.

so then find the difference 300 - 268 = 32

actually your concept is wrong

step-by-step explanation:

150% of x =300

150x=300×100

x=(300×100)÷150

x=200