Question

Teri bought 360 rubber band 2 make a bracelet

15% of the bands were white and the rest were red. After using 140 bands to make her 1st bracelet , 20% of the remaining bands were white

How many red bands did teri use on the bracelet

Answer 1

Explanation:

No. of white bands = 15% of 360 = (15/100)*360= 54

No.of red bands = 360 - 54 = 306

No. bands remaining = 360 - 140 = 220

No. of remaining white bands = 20% of 220= (20/100)*220 = 44

No. of remaining red bands = 220 - 44 = 176

No. of red band used = No.of red bands - No of remaining bands

= 306 - 176 = 130