Question-120827

Question Number 120827 by TITA last updated on 03/Nov/20

Commented by liberty last updated on 03/Nov/20

125 \times 666 \times 798 \times 1373 \times 77777 \times 111111

7 . 882535124571993 E 20

Commented by TITA last updated on 03/Nov/20

p l s h o w d o y o u s o l v e w i t h o u t a c a l c u l a t o r ?

Commented by 675480065 last updated on 03/Nov/20

When giving a question, its

a concour queztion and calculators

are not allowed .

So make mention of that \dots

Not testing the intelligence of people .

Commented by TITA last updated on 03/Nov/20

o k t h a n k y o u s i r

Answered by $@y@m last updated on 03/Nov/20

125 \times 666 \times 798 \times \dots .

125 \times 2 \times 333 \times 2 \times 399 \times \dots .

500 \times 333 \times 399 \times \dots .

\Rightarrow T h e p r o d u c t i s m u l t i p l e o f 500

A n s : (b)

Answered by 675480065 last updated on 03/Nov/20

multiply

125 and 2, the number gotten

ends with 2 zeros, thus the final result

should end with 2 zeros because

the last digits of the numbers left

can produce zeros when multiplied

Answered by antoineop last updated on 03/Nov/20

= 10 \times 25 \times 333 \times 798 \times 1373 \times 77777 \times 111111

= 100 \times 5 \times 333 \times 399 \times 1373 \times 77777 \times 111111

everything is odd except 100 and nothig

is divisible by 5

the answer has 2 zeros only at the end

Commented by antoineop last updated on 03/Nov/20

(l i t t l e m i s t a k e s t h e l a s t 5 s h o u l d n t

b e t h e r e)

Answered by mindispower last updated on 03/Nov/20

125 = 25.5

798 = 2.399

666 = 2.333

t h e n u m b e r i s m u l i p l e o f 100 n o t 1000

(25.2.2) \dots \dots . . a l l l t h e r e s t e s o a n s w e r i s b

Commented by peter frank last updated on 03/Nov/20

thank you both