Fun hw question I can't seem to get

  • Thread starter Thread starter rocketboy
  • Start date Start date
  • Tags Tags
    Fun
AI Thread Summary
The discussion revolves around solving a cryptarithm where each letter represents a different digit in the equation SEND + MORE = MONEY. Key deductions include that M must equal 1 and O must equal 0, leading to S being either 8 or 9. The contributor concludes that S is 9 after analyzing the carryover implications in the addition. They express frustration over consistently arriving at R equaling 9, which contradicts their earlier conclusion about S. Ultimately, the correct solution is revealed to be 9567 + 1085 = 10652.
rocketboy
Messages
243
Reaction score
1
Alright, this one has been bugging me for awhile now.

"In the following addition, each letter represents a different digit. Find the values of the letters."

.. S E N D periods are just there to push the "S E N D" over.
+ M O R E
---------
M O N E Y


Here's what I have so far:
1) M must = 1
2) Thus O must = 0, because S + M must generate a remainder, yet the numbers S and M can't add to more than 10 because M = 1, and even if there was a carried place value, it would add to 11 which can't be true because there can only be one 1 value.
3) Thus S = either 8 or 9; it can equal 8 if E + O generates a remainder, which it can only if E = 9. But since O = 0, N can't also be 0, so I decided that it can't generate a remainder, and thus S = 9. (Sorry for the ambiguous wording there.)
4)Since E can't = N, and since O = 0, the N + R has to produce a remainder so that the carried place value can be added to E (in the E + O = N column) to make the result of N different from E.

Somehow whenever I work it out, I always get R to equal 9, but it can't because that is what S is equal to. AAAAAAHHHH.

Am I on the right track? I MUST have done something wrong.
 
Last edited:
Physics news on Phys.org
HAHAHAH I AM VICTORIOUS!

If you want the answer highlight below this text, but not if you are so into the question and want to figure it out yourself! (It's very rewarding when you do).

9567 + 1085 = 10652
 
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Thread 'Variable mass system : water sprayed into a moving container'
Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
Back
Top