Fractions and Decimals (.125 + .027) / (.5 x .5 - 1.5 + .09) = ? 80 8 0.8 800 80 8 0.8 800 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given expression = [(0.5)³ + (0.3)³] / [(0.5)² - 0.5 x 0.3 + (0.3)²]= [a³ + b³] / [a² - ab + b²]=[(a + b)(a² - ab + b²)]/ [a² -ab + b²]= a+b = 0.5 + 0.3 = 0.8
Fractions and Decimals Which of the following fraction is the largest? 14/17 8/9 18/23 16/21 14/17 8/9 18/23 16/21 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Converting the given fractions into decimal form, we have,8/9 = 0.8818/23 = 0.7816/21 = 0.7614/17 = 0.82From the above, 0.88 is the largest.Corresponding fraction is 8/9.
Fractions and Decimals 0.15 / (0.5 / 15) = ? 400.5 None of these 40.5 4.5 400.5 None of these 40.5 4.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let Y = 0.15 / (0.5 / 15) = (15/100) / [(5/100) / 15) = 4.5
Fractions and Decimals The fraction ( 101 * 27/100000 ) in decimal form is : 101.00027 1010.0027 10100.027. 101000.27 101.00027 1010.0027 10100.027. 101000.27 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 101 * 27 / 100000 = 101 + 27 / 100000 = 101 + .00027 = 101.00027.
Fractions and Decimals Evaluate : [(2.39)² - (1.61)²] / [2.39 - 1.61] 2 6 4 3 2 6 4 3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given Expression=(a² - b²) / (a - b)=[(a + b)(a - b)] / (a - b)= (a + b)= (2.39 + 1.61)= 4
Fractions and Decimals Which of the following fractions is greater than 3/4 and less than 5/6? 4/5 2/3 1/2 9/10 4/5 2/3 1/2 9/10 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3/4 = 0.75, 5/6= 0.833, 1/2= 0.5, 2/3= 0.66,4/5= 0.8, 9/10= 0.9. Clearly, 0.8 lies between 0.75 and 0.833.4/5 lies between 3/4 and 5/6.
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