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:
36 comments Page 2 of 4.
Aswathy said:
7 years ago
The division process is also complicated. If there is any other method?
(1)
Priyank said:
10 years ago
@Nitesh Vatsa.
Options B and D both have sum = 6.
Then which is the correct answer?
Options B and D both have sum = 6.
Then which is the correct answer?
(1)
Nandini said:
6 years ago
@All
(935421 x 625) = (935421 x 5^4)
Because 5 x 5 x 5 x 5 = 5 ^4 = 625.
= {935421 x (10 /2)4},
= {935421 x 100000 /16},
= {93542100000/16}.
Than only simple division on your method.
(935421 x 625) = (935421 x 5^4)
Because 5 x 5 x 5 x 5 = 5 ^4 = 625.
= {935421 x (10 /2)4},
= {935421 x 100000 /16},
= {93542100000/16}.
Than only simple division on your method.
(1)
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)
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)
Bhukhya Vijay said:
6 years ago
@Raju.
Is the D.S is applicable to Fractions also?
Is the D.S is applicable to Fractions also?
Sagar said:
6 years ago
@Meenu.
Why you multiply 600 20 and 5 ?
Why you multiply 600 20 and 5 ?
Murali said:
5 years ago
No @Bhukhya Vijay.
The digital sum concept is not applicable to fractions.
The digital sum concept is not applicable to fractions.
Jhansi said:
2 weeks ago
Nice, thank you.
Girish said:
7 years ago
If the thousands digit is even, examine the number formed by the last three digits must be divisible by 16.
i.e 254,176: 176.
If the thousands digit is odd, the number formed by the last three digits plus 8 must be divisible by 16.
i.e 3408: 408 + 8 = 416.
i.e 254,176: 176.
If the thousands digit is odd, the number formed by the last three digits plus 8 must be divisible by 16.
i.e 3408: 408 + 8 = 416.
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