Toán Lớp 5: Nhanh nha mn
Hứa cho 5*, Tlhn
There are 8 white, 7 red and 5 green balls in a bag. If you are blindfolded and asked to draw a certain number of balls in order to have 4 balls of the same colour left in the bag, what is the maximum number of balls that you can draw from the bag?
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Comments ( 2 )
Total number of balls you have is:
8+7+5=20(number of balls)
The maximum number of balls that can be dropped is:
20-4=16(number of balls)
Đ/S:16 number of balls
8 + 7 + 5 = 20 (balls)
The minimum number of balls drawn is:
20 – 14 = 6 (balls)
Answer: 6 marbles