if 5+55+555+ +555 555=x then the last 3 digits of x will be (555 - Maths - Quadratic Equations

Question

if 5+55+555+ +555 555=x then the last 3 digits of x will be?
(555 555=100 digits)
plz respond soon

Lalit Mehra · Accepted Answer

x = 5 + 55 + 555 + + <img alt="" height="41" width="77"
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Sum of digits at the units places
= 5 + 5 + 5 + + 5 (100 terms)
= 5 Ã— 100
= 500
Digits at the unit place of
x is 0
Sum of the digit at the tens places
= 5 + 5 + + 5 (99 terms) + 50 (Carry)
= 5 Ã— 99 + 50
= 495 + 50
= 545
Digit at the tens place of
x is 5
Sum of digits at the hundreds places
= 5 + 5 + 5 + + 5 (98 terms) + 54 (carry)
= 5 Ã— 98 + 54
= 490 + 54
= 544
Digit at the hundreds place of
x is 4
Hence, the last 3-digits of x will be 450

if 5+55+555+....+555...555=x then the last 3 digits of x will be? (555...555=100 digits) plz respond soon

if 5+55+555+....+555...555=x then the last 3 digits of x will be?

(555...555=100 digits)

plz respond soon