Solve the following:
? / .0025 = 800

Correct Answer: 300

Explanation:

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

Correct Answer: 0.00072

Explanation:

? 9 x 8=72
? 0.09 x 0.008 = 0.00072 (Five place of decimal )

Correct Answer: .0005

Explanation:

Let 0.8y = 0.0004
Then,y = 0.0004 / 0.8
= 0.004 / 8
= .0005

Correct Answer: 0.0310324250

Explanation:

Here 5 x 25 x 6301 x 394=310324250
Total decimal places = (2+3+5) = 10
? 5 x 0.25 x 6.301 x 0.00394 = 0.0310324250

Correct Answer: 0.09724

Explanation:

9.724 ÷ 100 = 0.09724
Shift decimal two palaces to the left. i.e 100

Correct Answer: .1

Explanation:

Let 0.001 / x = 0.01
Then , x = 0.001 / 0.01
= 0.001 / 0.010
= 1 / 10
= 0.1

Correct Answer: .0003

Explanation:

0.000033 / 0.11 = 0.0033 / 11 =.0003

Correct Answer: 5000

Explanation:

25 / .0005 = 250000 / 5 = 50000

Correct Answer: None of these

Explanation:

Given expression = ( 12/ 0.027) x 2
= ( 12 / 0.027) x 2 = 24000/27
= 8000/9

Correct Answer: 0.02

Explanation:

50.8 / 2540 = 508 / 25400
= 2 / 100
= .02