## Fractions

#### Fractions

1. 15.60 x 0.30=?
1. 4.68
2. 0.458
3. 0.468
4. 0.0468

1. 1560 x 30 = 46800

##### Correct Option: A

∵ 1560 x 30 = 46800
∴ 15.60 x 0.30 = 4.6800
= 4.68 ( Four places of decimal )

1. 3 x 0.3 x 0.03 x 0.003 x 30=?
1. .0000243
2. .000243
3. .00243
4. .0243

1. 3 x 3 x 3 x 3 x 30 = 2430

##### Correct Option: C

3 x 3 x 3 x 3 x 30 = 2430
∴ 3 x 0.3 x 0.03 x 0.003 x 30 = 0.002430 (Six places of decimal )

1. 16.7 + 12.38 - ? =10.09
1. 17.89
2. 18.99
3. 16.98
4. 20.09

1. Let 16.7 + 12.38 - x =10.09
∴ x = 16.7 + 12.38 - 10.09

##### Correct Option: B

Let 16.7 + 12.38 - x =10.09
∴ x = 16.7 + 12.38 - 10.09
= 18.99

1. 0.6 + 0.66 + 0.066 + 6.606 = ?
1. 6.744
2. 6.738
3. 7.932
4. 7.388

1. 0.6 + 0.66 + 0.066 + 6.606 = 0.600 + 0.660 + 0.066 + 6.660

##### Correct Option: C

0.6 + 0.66 + 0.066 + 6.606 = 0.600 + 0.660 + 0.066 + 6.660
= 7.932

1. What decimal of an hour is a second ?
1. .0025
2. .0256
3. .00027
4. .000126

1. Required decimal = 1/ ( 60 x 60)

##### Correct Option: C

Required decimal = 1/ ( 60 x 60)
= .00027