Aptitude - Numbers - Discussion
Discussion Forum : Numbers - General Questions (Q.No. 7)
7.
(935421 x 625) = ?
Answer: Option
Explanation:
| 935421 x 625 = 935421 x 54 = 935421 x |  |
10 |  |
4 |
| 2 |
| = | 935421 x 104 | = | 9354210000 |
| 24 | 16 |
= 584638125
Discussion:
35 comments Page 3 of 4.
Mili said:
9 years ago
How 2 power 4 comes in denominator?
Nitesh vatsa said:
10 years ago
Lucky digit method.
Cancel multiple of 9 and add the rest.
3+2+1 = 6.
6+2+5 = 13 = 1+3 = 4.
6*4 = 24, 2+4 = 6.
Now check lucky digit method for option.
1. Cancel all combination of nine.
Add the rest 5+8 = 13 = 1+3 = 4.
So correct answer is B.
Cancel multiple of 9 and add the rest.
3+2+1 = 6.
6+2+5 = 13 = 1+3 = 4.
6*4 = 24, 2+4 = 6.
Now check lucky digit method for option.
1. Cancel all combination of nine.
Add the rest 5+8 = 13 = 1+3 = 4.
So correct answer is B.
Prema said:
1 decade ago
Simply you will multiply 935421 with 625.
Vignesh said:
1 decade ago
935421* (600+20+5).
935421*6 = 5612526 add two 0 in end 561252600. -----A.
935421*2 = 1870842 add one 0 in end 18708420. ------B.
935421*5 = 4677105. -----C.
A+B+C = 584638125.
935421*6 = 5612526 add two 0 in end 561252600. -----A.
935421*2 = 1870842 add one 0 in end 18708420. ------B.
935421*5 = 4677105. -----C.
A+B+C = 584638125.
(2)
R.V said:
1 decade ago
93542100*6.
935421*20.
935421*5.
We take multiply of 20 and 5 is 20/5 = 4.
"93542100/4".
935421*20.
935421*5.
We take multiply of 20 and 5 is 20/5 = 4.
"93542100/4".
Cusat ,nitish said:
1 decade ago
935421* (600+20+5).
935421*600 = 561252600.
935421*20 = 18708420.
935421*5 = 4677105.
(561252600+18708420+4677105) = 584638125.
935421*600 = 561252600.
935421*20 = 18708420.
935421*5 = 4677105.
(561252600+18708420+4677105) = 584638125.
(1)
Banasree said:
1 decade ago
@Malay.
Why the no is divide by 4 in 3rd step? explain.
Why the no is divide by 4 in 3rd step? explain.
Malay biitm bbsr said:
1 decade ago
1st step: 935421*100 = 93542100.
2nd step: 93542100*6 = 5161252600.
3rd step: 93542100/4 = 23385525.
4th step: 561252600 + 23385525 = 584638125(Answer).
2nd step: 93542100*6 = 5161252600.
3rd step: 93542100/4 = 23385525.
4th step: 561252600 + 23385525 = 584638125(Answer).
Dr R Vasudevan said:
1 decade ago
625 - use familiar 6.25 %, which is 100/16 ( like 12.5 = 100/8)(3.125% = 100/32).
Rest is as given in the top "EXPLANATION" 935421*10000/16 = 584638125.
Rest is as given in the top "EXPLANATION" 935421*10000/16 = 584638125.
Nazish Amam said:
1 decade ago
(900000+30000+5000+400+20+1)*625
=562500000+18750000+3125000+250000+12500+625
=584638125
=562500000+18750000+3125000+250000+12500+625
=584638125
(1)
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