২৭৮১
240 radioactive grams of goo loses half its radioactivity every 10 days. How many grams of radioactive goo is left in 40 days?
উত্তর
15
২৭৮২
John has started an egg farm. His chickens produce 540 eggs per day and his eggs sell for $3.00 a dozen. How much does John make on eggs per week?
উত্তর
$945
২৭৮৩
Jason can mow a lawn in 2 hours. ciera can mow the same lawn in 4 hours. If they work together. how many hours will it take them to mow the same lawn?
উত্তর
1 hour 20 minutes
২৭৮৪
Mary purchased chairs for $ 38 and sold all but 20 of them for $ 64 each, making a profit of $ 358. How many chairs did she originally purchase?
উত্তর
63
২৭৮৫
A truck travels 20 miles due north , 30 miles due east and then 20 miles due north. How many miles is the truck from the starting point?
উত্তর
50
২৭৮৬
If it costs d dollars to make the first 100 copies of a poster and e dollars for each poster after that, what is the total cost of 125 posters?
উত্তর
d +25 e
২৭৮৭
A standard veggiematik machine can chop 36 carrots in 4 minutes. How many carrots can 6 standar veggiematik cachines chop in 6 minutes?
উত্তর
324
২৭৯০
Alan has been ill and worked only 3/5 of his usual 40- hour week. He makes $ 13.85 an hour, How much has he earned this week?
উত্তর
$ 332.40