Fractions and Decimals (0.29)2 - (0.01)2/0.3 = ? 0.30 0.34 0.32 0.28 0.30 0.34 0.32 0.28 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP a² - b² = (a + b)(a - b)Hence,(0.29)² - (0.01)²/0.3 = (0.29 + 0.01)(0.29 - 0.01)/0.3= (0.3 x 0.28)/0.3 = 0.28
Fractions and Decimals 13.065 x 13.065 - 3.065 x 3.065 =? 1.613 1613 16.13 161.3 1.613 1613 16.13 161.3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given expression =(13.065)²-(3.065)² =(13.065 + 3.065) x (13.065 - 3.065)=16.13 x 10 = 161.3
Fractions and Decimals Which of the following fractions is greater than 3/4 and less than 5/6? 2/3 1/2 9/10 4/5 2/3 1/2 9/10 4/5 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.
Fractions and Decimals If 1.5x = 0.04y, then the value of ( (y - x) / (y+x) ) is : 65/67 73/77 61/63 71/74 65/67 73/77 61/63 71/74 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x / y = 0.04 / 1.5 = 4 / 150 = 2 / 75.= > ( (y - x) / (y+x) ) = (1 - (x / y)) / ( 1 + ( x / y)) = (1 - 2/75) / (1 + 2/75) = 73/77.
Fractions and Decimals Arrange the fractions in ascending order: 3/4, 5/8, 7/12, 13/16 7/12 < 5/8 < 3/4 < 13/16 5/8 < 7/12 < 13/16 < 3/ 5/8 < 3/4 < 13/16 < 7/12 5/8 < 7/12 < 3/4 < 13/16 7/12 < 5/8 < 3/4 < 13/16 5/8 < 7/12 < 13/16 < 3/ 5/8 < 3/4 < 13/16 < 7/12 5/8 < 7/12 < 3/4 < 13/16 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 5/8 = .625,7/12 = .5833, 3/4 = .75,13/16 = .8125So order will be 7/12 < 5/8 < 3/4 < 13/16
Fractions and Decimals Which of the following fractions is greater than 3 /4 and less than 5 / 6 ? 5/6 1/2 3/4 4/5 5/6 1/2 3/4 4/5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3 /4 = 0.75, 5/6 = 0.833,1/2 = .5,2/3 = 0.66, 4/5 = 0.8,9/10 = 0.9.clearly 0.8 lies between 0.75 and .833.4/5 lies between 3/4 and 5/6.