Aptitude - Numbers - Discussion

Discussion Forum : Numbers - General Questions (Q.No. 7)
7.
(935421 x 625) = ?
575648125
584638125
584649125
585628125
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 4 of 4.

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.

Meenu said:   1 decade ago
935421* (600+20+5).

935421*600=561252600.

935421*20=18708420.

935421*5=4677105.

(561252600+18708420+4677105) =584638125 answer.

ALBRET said:   1 decade ago
625=5^4 MEANS 5*5*5*5= 5^4

Mahesh babu said:   1 decade ago
Is there any short cut for this. If there please let me know.

Gokul said:   1 decade ago
We simply write (5) as 10/2...... (10/2=5)


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