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:
126 comments Page 9 of 13.
Aniruddha Wagh said:
1 decade ago
2x5 gives 0 at unit place.
2^2x5^2 gives two zeros at last of number i.e. at unit and tens place.
Similarly for higher power gives respective zeroes at end. Now you can easily solved it. No need for me to solve.
2^2x5^2 gives two zeros at last of number i.e. at unit and tens place.
Similarly for higher power gives respective zeroes at end. Now you can easily solved it. No need for me to solve.
Umar kce said:
1 decade ago
Our author says easiest way.
Ex: Any no which is multiply by multiples of 5 we can follow these method.
= 187*5= 1870/2 = 935.
i.e, 5^1 = 5. So one zero.
If 125 means 5^3 = 125, so 000 to be added.
How many zero to be added in numerator that much of 2 to be added in denominator?
If 625 means in 1870000/2*2*2*2.
Ex: Any no which is multiply by multiples of 5 we can follow these method.
= 187*5= 1870/2 = 935.
i.e, 5^1 = 5. So one zero.
If 125 means 5^3 = 125, so 000 to be added.
How many zero to be added in numerator that much of 2 to be added in denominator?
If 625 means in 1870000/2*2*2*2.
Vinitha said:
1 decade ago
5*5*5*5 = 625.
112*625 = 70000.
It is the simple step.
112*625 = 70000.
It is the simple step.
Aravinth Jiiva said:
1 decade ago
112*5^4.
= 28*4*5*5*5*5.
= 14*2*2*2*5*5*5*5.
= 7*2*2*2*2*5*5*5*5.
= 70000.
= 28*4*5*5*5*5.
= 14*2*2*2*5*5*5*5.
= 7*2*2*2*2*5*5*5*5.
= 70000.
Dipak said:
1 decade ago
= 112 (5*5*5*5).
= 112*625 = 70000.
= 112*625 = 70000.
Sona` said:
1 decade ago
Is there any tricks to solve the simple problems like this question is given above.
Anita said:
1 decade ago
112*25*25 = 70000.
Karthik kp said:
1 decade ago
Guys why thinking hard way be smart just 112*5*5*5*5 = 70000.
Cse naveen said:
1 decade ago
112*5^4 = (100+12)*625.
= (100*625)+(12*625).
= 62500+7500.
= 70000.
= (100*625)+(12*625).
= 62500+7500.
= 70000.
Ponnusamy said:
1 decade ago
= 112*(5*5*5*5).
= 112*(25*25).
= 112*(625).
= 7000.
= 112*(25*25).
= 112*(625).
= 7000.
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