### Discussion :: Numbers - General Questions (Q.No.7)

Priyanka said: (May 26, 2011) | |

From where did (10/2)^4 came? |

Gokul said: (May 29, 2011) | |

We simply write (5) as 10/2...... (10/2=5) |

Mahesh Babu said: (Jun 25, 2011) | |

Is there any short cut for this. If there please let me know. |

Albret said: (Apr 20, 2012) | |

625=5^4 MEANS 5*5*5*5= 5^4 |

Meenu said: (Jun 21, 2012) | |

935421* (600+20+5). 935421*600=561252600. 935421*20=18708420. 935421*5=4677105. (561252600+18708420+4677105) =584638125 answer. |

Nazish Amam said: (Oct 14, 2012) | |

(900000+30000+5000+400+20+1)*625 =562500000+18750000+3125000+250000+12500+625 =584638125 |

Dr R Vasudevan said: (Jan 24, 2013) | |

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. |

Malay Biitm Bbsr said: (Mar 30, 2013) | |

1st step: 935421*100 = 93542100. 2nd step: 93542100*6 = 5161252600. 3rd step: 93542100/4 = 23385525. 4th step: 561252600 + 23385525 = 584638125(Answer). |

Banasree said: (Jul 17, 2013) | |

@Malay. Why the no is divide by 4 in 3rd step? explain. |

Cusat ,Nitish said: (Aug 19, 2013) | |

935421* (600+20+5). 935421*600 = 561252600. 935421*20 = 18708420. 935421*5 = 4677105. (561252600+18708420+4677105) = 584638125. |

R.V said: (Dec 21, 2014) | |

93542100*6. 935421*20. 935421*5. We take multiply of 20 and 5 is 20/5 = 4. "93542100/4". |

Vignesh said: (Feb 2, 2015) | |

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. |

Prema said: (Jun 12, 2015) | |

Simply you will multiply 935421 with 625. |

Nitesh Vatsa said: (Aug 22, 2015) | |

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. |

Mili said: (Jun 29, 2016) | |

How 2 power 4 comes in denominator? |

Priyank said: (Jul 30, 2016) | |

@Nitesh Vatsa. Options B and D both have sum = 6. Then which is the correct answer? |

Raju said: (Sep 1, 2016) | |

By logic. 9 + 3 + 5 + 4 + 2 + 1 * 6 + 2 + 5 = 24 + 13, ==> 2 + 4 * 1 + 3 = 6 x 4, ==> 24 = 2 + 4 = 6. 1. 5 + 7 + 5 + 6 + 4 + 8 + 1 + 2 + 5 = 43 => 4 + 3 = 7. 2. 5 + 8 + 4 + 6 + 3 + 8 + 1 + 2 + 5 = 42 => 4 + 2 = 6. So, option 2 satisfy with the given expression. Therefore, option 2 is the answer. |

Sidharthan M said: (Apr 10, 2018) | |

Please help me to solve this problem. The sum and product of two numbers are 13 and 40 respectively. The sum of their reciprocal is? |

Chinmayi said: (Jul 14, 2018) | |

@Raju. Option 4 also satisfy with given expression. 5+8+5+6+2+8+1+2+5 => 4+2 => 6. Then how to choose the correct answer? |

Udaya Shankar S said: (Sep 26, 2018) | |

How 10/2 comes will you please explain? |

Lasya said: (Oct 5, 2018) | |

Is 935421 alone divisible by 16? If yes how is it possible? Please explain. |

Anshika Ydv said: (Oct 16, 2018) | |

I didn't understand the answer of this question. Could you explain it, please? |

Anjana Sathyan said: (Mar 20, 2019) | |

How to solve this 9354210000/16? Please explain in clear. |

Girish said: (Apr 15, 2019) | |

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. |

Aswathy said: (Nov 21, 2019) | |

The division process is also complicated. If there is any other method? |

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