Aptitude - Decimal Fraction - Discussion
Discussion Forum : Decimal Fraction - General Questions (Q.No. 5)
5.
If 2994 ÷ 14.5 = 172, then 29.94 ÷ 1.45 = ?
Answer: Option
Explanation:
| 29.94 | = | 299.4 |
| 1.45 | 14.5 |
| = |  |
2994 | x | 1 |  |
[ Here, Substitute 172 in the place of 2994/14.5 ] |
| 14.5 | 10 |
| = | 172 |
| 10 |
= 17.2
Discussion:
35 comments Page 4 of 4.
Deepa said:
1 decade ago
@Teja.
What you are telling is rite acctualy. But the problem is, if 2994/14. 5=172, according 2 maths subject if means given condition. Using the given conditions only we have to find the solutions.
What you are telling is rite acctualy. But the problem is, if 2994/14. 5=172, according 2 maths subject if means given condition. Using the given conditions only we have to find the solutions.
Sona said:
1 decade ago
Deepa why you divide and multiply with 10 one by one? why don't you directly divide 29.94 with 100 to make it 2994.
Look if it is like this as under then why it is wrong?
2994/14.5*1/100
as 2994/14.5=172 so
= 172*1/100 =1.72
Look if it is like this as under then why it is wrong?
2994/14.5*1/100
as 2994/14.5=172 so
= 172*1/100 =1.72
Teja said:
1 decade ago
2994/14.5=206.4 and 29.94/1.45=20.48
Deepa said:
1 decade ago
Hey this sum is very simple. I will explain you .first 29.94/1.45 is multiplied and divide with 10 then you will get 299.4/14.5 .then again multiply and divide 299.4/14.5 with 10 then very important you are going to multiply only the numerator with 10 because then only you wil get (2994/14.5*1/10).then substitute d value of 2994/14.5=172.
The next step is 172/10 then the ans is 17.2, I hope that you can understand
The next step is 172/10 then the ans is 17.2, I hope that you can understand
SuzAN said:
1 decade ago
Any short methods ?
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