8th Grade Worksheet11
2.If the area of a square is numerically 9 times more than the square's perimeter, then the side length of the square is
3.Find the number of zeroes at the end of 2010!
4.James bought a sweater and saved $20 when a discount of 25% was given.What was the price of the sweater before the discount?
5.How many digits are there in 320000112?
6.When 2.481481……. is expressed as a fraction of integers, it yields a/b , where a and b are relatively prime. Find a + b.
7.Selling price of a toy car is $540.If the profit made by a shop keeper is 20%. What is the cost price of this toy?
8.Let us consider ten boxes in which each filled with ten Poke balls. James finds that among them is one box containing defective Poke balls which weigh one gram less than normal Poke balls. James has a digital scale which can measure the mass of the Poke balls, either one or many at a time. Find the least number of weighing with which James can find out the defective box.
9.What is the remainder when 227 divided by 9
10. The area of a square and a rectangle are equal. If the side of a square is 40 cm and the breadth of the rectangle is 25 cm,find the length of the rectangle.
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10. 64 cm