King
By what number less than 2 must be multiplied so that the last 3 figures on the right end of the product may be 791
Delete
Share
This Question is Closed
King
Best Response
You've already chosen the best response.
0
igs hellp man....atleast try
King
Best Response
You've already chosen the best response.
0
@JamesJ ,@Tomas.A ,@Diyadiya help guys help!!!
King
Best Response
You've already chosen the best response.
0
help callisto!
King
Best Response
You've already chosen the best response.
0
this frm real numbers chapter
lgbasallote
Best Response
You've already chosen the best response.
0
oh man...im weak with these things @_@
King
Best Response
You've already chosen the best response.
0
@Callisto u are the only one with a chance of doin this...so do u know how to do it?
Callisto
Best Response
You've already chosen the best response.
0
Sorry i don't even understand the question :(
what number less than 2 <-- does it mean a single number?
King
Best Response
You've already chosen the best response.
0
yeah there is some number...its related to HCF AND LCM THROUGH EUCLID'S DIVISION LEMMA
Callisto
Best Response
You've already chosen the best response.
0
Sorry haven't learnt that :(
Ishaan94
Best Response
You've already chosen the best response.
2
Word it right, you worded it so complex.
King
Best Response
You've already chosen the best response.
0
its a problem in my phase-4 fiitjee package..i gave it to u the way it is worded
King
Best Response
You've already chosen the best response.
0
but i dont understand answer is 871
King
Best Response
You've already chosen the best response.
0
oh sry wait its by what number less than 2must be multiplied with 43521.....
King
Best Response
You've already chosen the best response.
0
i by mistake frgt to mention 43521....:/
Ishaan94
Best Response
You've already chosen the best response.
2
Oh
King
Best Response
You've already chosen the best response.
0
so?
Ishaan94
Best Response
You've already chosen the best response.
2
Let x be the number,
(435*100,000 + 521)*x = adasd...fsh791
So, last digit of x must be 1.
The answer is clearly 871, but I did this problem with logic and it's really tough to explain logic unless your communication skills are really impressive.
So... I am gonna tag @FoolForMath and @Mr.Math to see if they know some trick or the method you mentioned above.
Ishaan94
Best Response
You've already chosen the best response.
2
btw basic multiplication is what I used.
King
Best Response
You've already chosen the best response.
0
its 43521
King
Best Response
You've already chosen the best response.
0
not 43500521
Ishaan94
Best Response
You've already chosen the best response.
2
(435*1000 + 521)*x = adasd...fsh791
Ishaan94
Best Response
You've already chosen the best response.
2
My bad
King
Best Response
You've already chosen the best response.
0
its 43*1000 +521 or 435*100+21 rite?
King
Best Response
You've already chosen the best response.
0
435*1000 + 521)=435521
Ishaan94
Best Response
You've already chosen the best response.
2
yeah, again my bad :/
King
Best Response
You've already chosen the best response.
0
oh and u can use any method......
Ishaan94
Best Response
You've already chosen the best response.
2
but it doesn't matter, just get the 521 separately and then multiply it my x (the assumed number).|dw:1332944499486:dw|
Ishaan94
Best Response
You've already chosen the best response.
2
by* not my ...and sorry for the bad handwriting.
FoolForMath
Best Response
You've already chosen the best response.
0
871 is the answer, if you know the one line multiplication then this problem is a 10 seconder ;)
King
Best Response
You've already chosen the best response.
0
@Ishaan94 what hav u done in the diagram can u post a normal reply the diagram is very messy so i cant understand anythin..................
Aadarsh
Best Response
You've already chosen the best response.
2
@King , see my answer below. Hope u understand.
Aadarsh
Best Response
You've already chosen the best response.
2
Please check the attached document. Hope u r clear now.
King
Best Response
You've already chosen the best response.
0
Thnx @Aadarsh!!
Aadarsh
Best Response
You've already chosen the best response.
2
Most welcome.