Aptitude - Square Root and Cube Root - Discussion
Discussion Forum : Square Root and Cube Root - General Questions (Q.No. 4)
4.
1.5625 = ?
Answer: Option
Explanation:
1|1.5625( 1.25
|1
|-------
22| 56
| 44
|-------
245| 1225
| 1225
|-------
| X
|-------
1.5625 = 1.25.
Discussion:
62 comments Page 4 of 7.
Rahul said:
6 years ago
@Sidhu.
How is 1+5+6+2+5=8?
How is 1+5+6+2+5=8?
Murali said:
1 decade ago
root of 1.5625 = ?
We can write it as 15625/10000.
=1.5625
= root of 1.5625 = 1.25
We can write it as 15625/10000.
=1.5625
= root of 1.5625 = 1.25
Abinash said:
2 decades ago
Well I think in the 3rd step it should be something after 22 not 24..yes or no? if 245 then how?
Deepti said:
2 decades ago
Varun's explanation is easier to under stand.
Abdul said:
1 decade ago
Can you please tell how 125/100?
Rajesh said:
1 decade ago
the power 6 and power 4 get cancel. then we have 5 power 3 and 10 power 2.
SAJITHA said:
1 decade ago
Varun your solution is very helpful.
Sandeep said:
1 decade ago
Actually,
225 = 15*15 = 1*2
625 = 25*25 = 2*3
1225 = 35*35 = 3*4
So...
15625 = ????? = 12*13 = 12*12
Hence it'll be 125/100 = 1.25
225 = 15*15 = 1*2
625 = 25*25 = 2*3
1225 = 35*35 = 3*4
So...
15625 = ????? = 12*13 = 12*12
Hence it'll be 125/100 = 1.25
Shri said:
1 decade ago
Anyone can explain varun's 3rd step?
Sakshi said:
1 decade ago
Hi Shri! 5 power of 6 and 10 power of 4
we can write it= 5 square*5 square*5 square/10 square*10 square under root
it will bcome 5*5*5/10*10 =125/100 =1.25
we can write it= 5 square*5 square*5 square/10 square*10 square under root
it will bcome 5*5*5/10*10 =125/100 =1.25
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