A bucket of sand weighed 3 pounds. Then Eloise added another 20 ounces of sand to the bucket. How much does the bucket of sand weigh now?

1.4 1/4 lb
2.4 1/2 lb
3.5 1/4 lb
4.5 1/2lb

The bucket now weights 4.25 pounds

Step-by-step explanation:

20 ounces=1.25 pounds

1.25+3= 4.25 pounds

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b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5