Aptitude - Decimal Fraction - Discussion

Discussion Forum : Decimal Fraction - General Questions (Q.No. 28)
28.
0.0203 x 2.92 = ?
0.0073 x 14.5 x 0.7
0.8
1.45
2.40
3.25
Answer: Option
Explanation:

0.0203 x 2.92 = 203 x 292 = 4 = 0.8
0.0073 x 14.5 x 0.7 73 x 145 x 7 5

Discussion:
17 comments Page 2 of 2.

SUJAI.R said:   7 years ago
Remove all decimals. Because the number of decimal places is same in num and denominator.

So removed that. Then you can divide easily. Take 70 tables, 3 times you got 210 value. But here 203 present. So 29 times it takes.

Then 73 table. 292 achieves by 4th step of 73.

Then you divide 116/145 the answer is 0.8. Hope you understand.
(1)

Aasai priyan said:   7 years ago
(0.0203/0.0073) * 10000 = 203/73.
2.92 * 100 = 292,
14.5 * 10 = 145,
0.7 * 10 = 7,
(203 * 292)/(73 * 145 * 7) = 4/5 = 0.8.
(1)

Anomiy said:   6 years ago
How (203*292)/(73*145*7) = 4/5 = 0.8?
(1)

Oanh said:   6 years ago
145=29*5 --> (203*292)/(73*5*29*7).
29*7=203 --> 292/(73*5).
292/73=4 --> 4/5.
(1)

Charan said:   5 years ago
(292÷73=4)
(203÷7=29) the remaining number's 4 *29/145.
29*5=145 so 4/5 is the answer

Priyal said:   5 years ago
The Solution is;
= 203*292*1000*10*10÷1000*100*73*145*7.
= 203*292 ÷ 73*145*7.
= 29*4 ÷ 145.
= 116 ÷*145.
= 0.8 answer.

Borole Ganesh Pralhad said:   2 months ago
Good answer. Thanks all.


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