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Fractions and Decimals

Fractions and Decimals
Which of the following fractions is greater than 3 /4 and less than 5 / 6 ?

5/6
3/4
4/5
1/2

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.

Fractions and Decimals
138.009 + 341.981 - 146.305 = 123.6 + ?

21.0085
210.085
21.0085
2.10085

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let 138.009 + 341.981 - 146.305 = 123.6 + zThen, z = (138.09+341.981) - (146.305+123.6)= 479.99 - 269.905 = 210.085

Fractions and Decimals
12.1212 + 17.0005 - 9.1102 = ?

200.115
20.0115
2.00115
2001.15

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Given Expression,= (12.1212 + 17.0005) - 9.1102= (29.1217 - 9.1102)= 20.0115.

Fractions and Decimals
What decimal of an hour is a second

0.0025
0.0026
0.0028
0.0027

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

1 / (60 * 60) = 1 / 3600 = .0027

Fractions and Decimals
A person was asked to state his age in years. His reply was , "Take my age 3 years hence, multiply it by 3 and subtract 3 times my age 3 years ago and you will know how old I am." What was the age of

17
18
19
16

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the present age of person be   x years.Then, 3(x + 3) - 3(x - 3 ) = x  <=> (3x + 9) - (3x - 9) = x  <=> x = 18

Fractions and Decimals
? % of 10.8 =32.4

600
500
300
100

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let k % of 10.8=32.4 ⇒ (k x 10.8) / 100 = 32.4⇒ k = (32.4 x 100 )/10.8 = 300

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