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 4 of 13.

Tony said:   6 years ago
Hi @Ravi.

How we can take it as 50/2 could you please explain it? Then it will become (25) ^4.

Manohar said:   10 years ago
@Shefali you nailed it. Just count the power of 5, and that many zeros have to be in answer.

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.

Rakkesh said:   1 decade ago
(100+12) (5*5*5*5).
(100+12) (625) .

100*625 = 62500 + 12*625 = 7500.

Answer = 70000.

Tejal Patel said:   1 decade ago
(100+10+2)(5^2)(5^2).

(100+10+2)25^2.

(100*625+10*625+2*625).

62500+6250+1250.

70000.

Cse naveen said:   1 decade ago
112*5^4 = (100+12)*625.
= (100*625)+(12*625).
= 62500+7500.
= 70000.

Bhargav said:   6 years ago
112 can be written as 7 * 2^4 so (2^4)*(5^4) gives you 4 zeros.

So, 70000 is the answer.

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)

Basha..... said:   1 decade ago
(112x5^4) = (112x625)

= 112 (600+25)

= (112x600+112x25)

= 67200+2800

= 70000.

KaniKannan.S.S said:   9 years ago
Very simple method for :
= 112 * 5^4,
= 112 * (5 * 5 * 5 * 5),
= 112 * 625,
= 70000.


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