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:
125 comments Page 4 of 13.
Mahi said:
7 years ago
The Simple trick is;
Highest power is 4 therefore answer will be the option having 4 zeros i.e. 70000.
Highest power is 4 therefore answer will be the option having 4 zeros i.e. 70000.
Vaibhav said:
7 years ago
This method is quite easy to solve;
112 * 625.
= 100*625+10*625+2 * 625,
= 62500 + 6250 + 1250,
= 70000.
112 * 625.
= 100*625+10*625+2 * 625,
= 62500 + 6250 + 1250,
= 70000.
(1)
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.
-------------------
Kapil said:
7 years ago
It is simple.
112 * 5 * 5 * 5 * 5,
112*625,
70000.
112 * 5 * 5 * 5 * 5,
112*625,
70000.
Karthikeyan said:
7 years ago
@Ramya.
5*5*5*5 = 625 then 112 * 625 = 70000.
5*5*5*5 = 625 then 112 * 625 = 70000.
Atif iqbal said:
7 years ago
5*5*5*5=625.
112*625=70000.
This is so simple method.
112*625=70000.
This is so simple method.
Sandesh said:
7 years ago
We can also solve it by this method.
112=4^2+10^2*5^4.
Cancel these squares,
(4+10)*5=70.
112=4^2+10^2*5^4.
Cancel these squares,
(4+10)*5=70.
Trishita said:
7 years ago
112*5^4.
= 16*7*5*5*5*5,
= (4*5)*(4*5)*5*5*7,
= (20*5)*(20*5)*7,
= 100*100*7,
= 70000.
= 16*7*5*5*5*5,
= (4*5)*(4*5)*5*5*7,
= (20*5)*(20*5)*7,
= 100*100*7,
= 70000.
(1)
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.
Ravi Kiran said:
7 years ago
5----2^1,
5*5------2^2=4,
5*5*5------2^3=8,
5*5*5*5-----2^4=16,
Then simply,
112/16=7 and then it is 70000.
5*5------2^2=4,
5*5*5------2^3=8,
5*5*5*5-----2^4=16,
Then simply,
112/16=7 and then it is 70000.
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