It is tough for me

Number of zeroes in the end in the product of 56 × 67 × 78 × ........× 3031 is
(A)111
(B)147
(C)137
(D)136

13 Answers

36
rahul ·

ya i agree....!!
i m a sycho..!! sorry rahul

21
Shubhodip ·

find power of 2 and 5 ,thts all

1
Vinay Arya ·

Rahul,there is no option like that.

1
kunl ·

c is wat i think!

1
kunl ·

rahul subho ki baat yaad hai [3].aisa mat kar warna maths tujhse badla legi![3][3].option toh padha kar!

1
swordfish ·

c

1
Vinay Arya ·

Swordfish is right.

1
kunl ·

did i not say c/

39
Dr.House ·

so no one wants to show the working here?

1
kunl ·

@!^--_--^!
bhaiya i think subhodip told the concept and there is nothing more than that to the problem...just "mere clerical" work...!

36
rahul ·

One of the logic which can work here is,

odd x odd can never end with the digit 0

even x odd or, even x even can end with the digit 0

it can be done very very and very easily....!!

shall i post the solution?

1
kunl ·

kar de jinko shubho ka logic nahi aya samjh unko bhi samjh aa jayega!

36
rahul ·

Do this,

Only multiply those terms which is a multiple of 5 or 2 eg. 26, 25 and all....

At last u'll get, 5137 x 2>137 but 2>137 is of no use, as 2n can never end with a digit zero for any iteger n

so, the answer is 137 i.e., option c is correct :D

i.e., Subhodip bhai's logic is correct

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