Maths problems solved

Feb 3rd, 2012
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(a) 92 percent + decimal 0.92 because 92 percent = 92/100 AWS a fraction. (b) 3% as fraction means 3 out of 100 = 3/100. (c) 5% 0f 400 grams means 5/100 x 400 = 5 x4 = 20.

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10. (a) 92 percent + decimal 0.92 because 92 percent = 92/100 AWS a fraction. (b) 3% as fraction means 3 out of 100 = 3/100. (c) 5% 0f 400 grams means 5/100 x 400 = 5 x4 = 20. 11. (a) 2/5 is not 1/2 because 2/5 cannot be simplified as fraction 1/2. (b) 3/4 of 20 means 3/4 x 20/1 = 3 x5 = 1519. Larger of 3/4 and 4/5. Convert both fractions with a common denominator which is 20. Fractions can be written as 3x5/4x5 = 15/20 and 4x4/5/4 = 16/20. Compare 15/20 with 16/20. Therefore 16/20 is larger. Answer is 4/5 is larger fraction.12. 42 out of 50 in history test is 42x2 /50x2

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