Aptitude - Numbers - Discussion

Discussion Forum : Numbers - General Questions (Q.No. 2)
2.
(112 x 54) = ?
67000
70000
76500
77200
Answer: Option
Explanation:
(112 x 54) = 112 x 10 4 = 112 x 104 = 1120000 = 70000
2 24 16
Discussion:
125 comments Page 9 of 13.

Karthik Sonegara said:   8 years ago
Can anybody help me with this!

My query is that why do we consider 5^4 when the question says 54?

Rushikesh K. said:   8 years ago
Simply it is 112 x 5 x 5 x 5 x 5 = 7000.

Mukesh Rathod said:   8 years ago
It should be,

112*625=70000.

Rakesh said:   8 years ago
112(600+25) = 12200*6 + 112*20 + 122*5 = 70000.

Sumon said:   7 years ago
We can make it more simply.

112*5^4 =112*625=70000.

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.

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.

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.
(1)

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.

Atif iqbal said:   7 years ago
5*5*5*5=625.
112*625=70000.
This is so simple method.


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