Aptitude - Decimal Fraction - Discussion

Discussion Forum : Decimal Fraction - General Questions (Q.No. 5)
5.
If 2994 ÷ 14.5 = 172, then 29.94 ÷ 1.45 = ?
0.172
1.72
17.2
172
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 2 of 4.

Tenzin said:   6 years ago
2994/14.5 = 172 ( given).
29.94/1.45 = ?.
Now
29.94/1.45 *100/10 = 2994/14.5.
29.94/1.45* 100/10 = 172,
29.94/1.45 = 172 * 10/100,
29.94/1.45 = 17.2.
(8)

Pragati said:   1 decade ago
@Vikas.

Because its already mentioned in the question that 2994/14.5 = 172.

After calculations when we get this value. We substitute it to 172.

Chetan said:   6 years ago
Given.

2994/14.5 = 172,
Now 29.94/1.45 can be expressed as 2994*10/14.5*100 = >2994/14.5*10.
Since 2994/14.5 = 172 then,
172 * 1/10 = 17.2.
(4)

Naveen Kumar Reddy said:   5 years ago
2994/14.5 * 10/100 = 172* 10/100 (multiply by 10/100 on both sides).
29.94/1.45 = 172*10/100.
29.94/1.45 = 172*1/10.
29.94/1.45 = 17.2.
(5)

Anvesh nayak said:   5 years ago
29.94/1.45*10/10.
=299.4/14.5.
299.4/14.5*10/10.
=299.4*10/14.5*1/10.
2994/14.5*1/10.

But 2994/14.5=172.
So,
172*1/10,
=172/10,
=17.2.
(5)

Anushka G P said:   1 year ago
29.94/1.45 = ((2994x10^(-2)/(14.5 * 10^(-1)).
29.94/1.45 = (2994x14.5)x10^(-1),
29.94/1.45 = 172x10^(-1),
29.94/1.45 = 17.2.
(3)

Ram said:   7 years ago
@ALL.

Here, Only decimals change 14.5 to 1.45.
& 172.0 to 17.2.
Then
14.5 = 172.0.
And similarly 1.45 = 17.2.

Vikas said:   1 decade ago
Hey, my calculator says 2994/14.5 = 206.4827586206897.

How you people substitute it with 172? please tell me.

JASPAL said:   10 years ago
Friends I'm unable to understand how 2994/14.5 = 172.

My calculator says 2994/14.5 = 206.4827586206897.

Sirisin said:   6 months ago
@Janhavi.

Multiplying with 1/10 means dividing 2994 by 10 which gives 299.4 without altering the rules.


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