Aptitude - Numbers - Discussion
Discussion Forum : Numbers - General Questions (Q.No. 2)
2.
(112 x 54) = ?
Answer: Option
Explanation:
| (112 x 54) = 112 x |  |
10 |  |
4 | = | 112 x 104 | = | 1120000 | = 70000 |
| 2 | 24 | 16 |
Discussion:
124 comments Page 2 of 13.
Giridhar Reddy said:
7 years ago
112 * 5^4 =
2 * 5 = 10 (since 112 = 2*2*2*2*7).
2 * 5 = 10
2 * 5 = 10
2 * 5 = 10
7 = 7
-----------------
7 * 10^4 = 70000.
-------------------
2 * 5 = 10 (since 112 = 2*2*2*2*7).
2 * 5 = 10
2 * 5 = 10
2 * 5 = 10
7 = 7
-----------------
7 * 10^4 = 70000.
-------------------
Asha said:
1 decade ago
Easiest way is 112*5*5*5*5=70000.
I have used multiplied 5 four times because they have given 5 to the power of 4 hence you can use it in a simplest manner by multiplying 5 four times.
I have used multiplied 5 four times because they have given 5 to the power of 4 hence you can use it in a simplest manner by multiplying 5 four times.
Shefali said:
10 years ago
We can simply check the number of zeros by determining the number of 5's.
Here, number of 5 = 4.
So, the answer will must have 4 zeros in last! So, here the answer will be 70000!
Here, number of 5 = 4.
So, the answer will must have 4 zeros in last! So, here the answer will be 70000!
Tamilarasi said:
1 decade ago
How to put 10/2.......
If you write 10/2 means this ans is 5
In these sums easy way to get the ans.
eg:25 means 50/2.
112*10*10*10*10
_______________ = 70,000
2*2*2*2
If you write 10/2 means this ans is 5
In these sums easy way to get the ans.
eg:25 means 50/2.
112*10*10*10*10
_______________ = 70,000
2*2*2*2
S.kishore sulthana said:
1 decade ago
The most easy method is
we all know that 5^4=(5^2)*(5^2)
=25*25=625
and then we multiple this answer with 112
i.e., (112*625)=70000
we all know that 5^4=(5^2)*(5^2)
=25*25=625
and then we multiple this answer with 112
i.e., (112*625)=70000
Shiyamala said:
1 decade ago
112*5^4 =112*(5*5*5*5)
=112*(625)
=70000
or
112*5^4 = 112*(10/2)^4
= 112*(10000/16)
= 1120000/16
= 70000
=112*(625)
=70000
or
112*5^4 = 112*(10/2)^4
= 112*(10000/16)
= 1120000/16
= 70000
Poonam said:
1 decade ago
Addition is simpler than multiplication,
(100+10+2)*(25*25)
=(100+10+2)*[25(20+5)]
=(100+10+2)*[500+125]
=(100+10+2)*625
=62500+6250+1250
=70000
(100+10+2)*(25*25)
=(100+10+2)*[25(20+5)]
=(100+10+2)*[500+125]
=(100+10+2)*625
=62500+6250+1250
=70000
Trina said:
1 decade ago
Another easy method
112=7*2^4
we have to multiply 112 with 5^4
so the solution =7*2^4*5^4=7*(2*5)^4=7*10^4=70000
This is the answer.
112=7*2^4
we have to multiply 112 with 5^4
so the solution =7*2^4*5^4=7*(2*5)^4=7*10^4=70000
This is the answer.
Narendra patidar said:
7 years ago
112*5^4=
112=(100+10+2)
5^4=625.
Now
(100+10+2)*625.
=>100*625 +10*625 + 2*625,
=> 62500 + 6250 + 1350,
=> 700000.
112=(100+10+2)
5^4=625.
Now
(100+10+2)*625.
=>100*625 +10*625 + 2*625,
=> 62500 + 6250 + 1350,
=> 700000.
Priya said:
1 decade ago
112*5^4 = (100+12) *625.
Use formula (a+b) *c = (a*c) + (b*c).
(100+12) *625 = (100*625) + (12*625).
= 62500+7500.
= 70000.
Use formula (a+b) *c = (a*c) + (b*c).
(100+12) *625 = (100*625) + (12*625).
= 62500+7500.
= 70000.
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