please empty your brain below
a) Year = 1920
2019 - 1920 = 99

dg writes: Too much information.

Robby | 03.01.19 - 8:06 a.m. | #

a) 99?

dg writes: A question, not an answer.

Lorenzo Hermoso | 03.01.19 - 8:08 a.m. | #

a) 99 years ago in 1920.

dg writes: Too much information.

Mike Scott | 03.01.19 - 8:13 a.m. | #

b) What Zin said - 1920.

dg writes: That's not what Zin said.

Waterhouse | 03.01.19 - 8:17 a.m. | #

1920. Before that, 1911, 1902, and 1830.

dg writes: Too much information.

Flange | 03.01.19 - 8:20 a.m. | #

a) 108
b) 1911

dg writes: Incorrect.
Also, answering too many questions.

Richard | 03.01.19 - 8:27 a.m. | #

8 years ago
2011

dg writes: Incorrect.

Jim | 03.01.19 - 8:28 a.m. | #

Depending on how the question is interpreted:

Always. (The digits of 2019 always add up to twelve, regardless of which year it is at the time);

Or Straightforwardly, 1920;

dg writes: Over-interpretation.

Dominic H | 03.01.19 - 8:30 a.m. | #

Woops. Half asleep.
108 years ago.
1911

dg writes: Still incorrect.

Jim | 03.01.19 - 8:31 a.m. | #

99 years - 1920.

dg writes: Too much information.

Tim W | 03.01.19 - 8:33 a.m. | #

a) 99 years, i.e.
b) 1920

dg writes: Answering too many questions.

Peter | 03.01.19 - 8:42 a.m. | #

Surprisingly interesting question. Not hard but one has to think of a thought process to get to the answer.

Not 201x before this year obviously.

Not 200x because the highest possible is 11.

So 19xx - but before 1930 since after that date the digits will add up to a higher number than for 1930 (which is 13).

So 192x is the next guess- and obviously 1920 is a possible answer and no year subsequent to will meet the condition.

dg writes: Excellent stuff, but doesn't specifically answer the question.

Pedantic of Purley | 03.01.19 - 8:48 a.m. | #

D) 2026

dg writes: Incorrect.

Sara | 03.01.19 - 9:13 a.m. | #

a) 99.
b) 2020.
c) 9.
d) 2028.
e) 9.

Regards

dg writes: Answering too many questions.

zin92 | 03.01.19 - 9:16 a.m. | #

e) nine

dg writes: Nameless comment.

| 03.01.19 - 9:29 a.m. | #

e) 9 times this century including this year, the last being 2091.

dg writes: Too much information.

Ian | 03.01.19 - 9:30 a.m. | #

E) Nine

dg writes: Nameless commenter again.

| 03.01.19 - 9:35 a.m. | #

E 9

dg writes: Nameless comment.

| 03.01.19 - 9:47 a.m. | #

E) 9 times?

dg writes: A question, not an answer.

Brian | 03.01.19 - 9:50 a.m. | #

A one-line Ruby script that finds all years between 1900 and 2999 whose digits add up to 12: 

1900.upto(2999).map { |year| [year, year.to_s.chars.map(&:to_i).reduce(:+)] }.select { |year, sum| sum == 12 }

One that counts how many there are in the 21st century: 

2000.upto(2999).map { |year| [year, year.to_s.chars.map(&:to_i).reduce(:+)] }.count { |year, sum| sum == 12 }

dg writes: Spoilers.

Rob Miller | Homepage | 03.01.19 - 9:54 a.m. | #

...a lot of people getting shifted it seems

Grumpy Anon | 03.01.19 - 9:56 a.m. | #

e) 9 (including 2019 and 2028)

dg writes: Too much information.

Will | 03.01.19 - 9:56 a.m. | #

f) 10

dg writes: Not the current question.

Rob Miller | Homepage | 03.01.19 - 10:33 a.m. | #

g) 2100s

dg writes: Not the name of a century.

Rob Miller | Homepage | 03.01.19 - 10:33 a.m. | #

h) 1200s

dg writes: Not the name of a century.

Rob Miller | Homepage | 03.01.19 - 10:35 a.m. | #

j) the 108-year gap between 3900 and 4008

dg writes: Too much information.

Rob Miller | Homepage | 03.01.19 - 10:43 a.m. | #

k) 49th

dg writes: Incorrect.

mcf | 03.01.19 - 10:58 a.m. | #

K. 50th century

dg writes: Incorrect.

brian | 03.01.19 - 11:08 a.m. | #

k) Between 4900 and 4999, ie 50th century.

dg writes: Incorrect.

Ian | 03.01.19 - 11:09 a.m. | #

k) You must mean 3901 to 4000 then.
Slippery.

dg writes: Yes, but doesn't answer the question.

brian | 03.01.19 - 11:23 a.m. | #

k) From 4801 to 4900.

dg writes: Incorrect.

mcf | 03.01.19 - 11:37 a.m. | #

0039–0093 [in intervals of 9] = 7×, then jump +36 (i.e. for the start of the next row add 4 × 9)
0129–0192 [in intervals of 9] = 8×, then jump +27 (i.e. +3 × 9)
0219–0291 [in intervals of 9] = 9×, then jump +18 (i.e. +2 × 9)
0309–0390 [in intervals of 9] = 10×, then jump +18 (i.e. +2 × 9)
0408–0480 [in intervals of 9] = 9×, then jump +27 (i.e. +3 × 9)
0507–0570 [in intervals of 9] = 8×, then jump +36 (i.e. +4 × 9)
0606–0660 [in intervals of 9] = 7×, then jump +45 (i.e. +5 × 9)
0705–0750 [in intervals of 9] = 6×, then jump +54 (i.e. +6 × 9)
0804–0840 [in intervals of 9] = 5×, then jump +63 (i.e. +7 × 9)
0903–0930 [in intervals of 9] = 4×, then jump +99 (i.e. +11 × 9)
1029–1092 [in intervals of 9] = 8×, then jump +27 (i.e. +3 × 9)
1119–1191 [in intervals of 9] = 9×, then jump +18 (i.e. +2 × 9)
1209–1290 [in intervals of 9] = 10×, then jump +18 (i.e. +2 × 9)
1308–1380 [in intervals of 9] = 9×, then jump +27 (i.e. +3 × 9)
1407–1470 [in intervals of 9] = 8×, then jump +36 (i.e. +4 × 9)
1506–1560 [in intervals of 9] = 7×, then jump +45 (i.e. +5 × 9)
1605–1650 [in intervals of 9] = 6×, then jump +54 (i.e. +6 × 9)
1704–1740 [in intervals of 9] = 5×, then jump +63 (i.e. +7 × 9)
1803–1830 [in intervals of 9] = 4×, then jump +72 (i.e. +8 × 9)
1902–1920 [in intervals of 9] = 3×, then jump +99 (i.e. +11 × 9)
2019–2091 [in intervals of 9] = 9×, then jump +18 (i.e. +2 × 9)
2109–2190 [in intervals of 9] = 10×, then jump +18 (i.e. +2 × 9)
2208–2280 [in intervals of 9] = 9×, then jump +27 (i.e. +3 × 9)
2307–2370 [in intervals of 9] = 8×, then jump +36 (i.e. +4 × 9)
2406–2460 [in intervals of 9] = 7×, then jump +45 (i.e. +5 × 9)
2505–2550 [in intervals of 9] = 6×, then jump +54 (i.e. +6 × 9)
2604–2640 [in intervals of 9] = 5×, then jump +63 (i.e. +7 × 9)
2703–2730 [in intervals of 9] = 4×, then jump +72 (i.e. +8 × 9)
2802–2820 [in intervals of 9] = 3×, then jump +81 (i.e. +9 × 9)
2901–2910 [in intervals of 9] = 2×, then jump +99 (i.e. +11 × 9)
3009–3090 [in intervals of 9] = 10×, then jump +18 (i.e. +2 × 9)
3108–3180 [in intervals of 9] = 9×, then jump +27 (i.e. +3 × 9)
3207–3270 [in intervals of 9] = 8×, then jump +36 (i.e. +4 × 9)
3306–3360 [in intervals of 9] = 7×, then jump +45 (i.e. +5 × 9)
3405–3450 [in intervals of 9] = 6×, then jump +54 (i.e. +6 × 9)
3504–3540 [in intervals of 9] = 5×, then jump +63 (i.e. +7 × 9)
3603–3630 [in intervals of 9] = 4×, then jump +72 (i.e. +8 × 9)
3702–3720 [in intervals of 9] = 3×, then jump +81 (i.e. +9 × 9)
3801–3810 [in intervals of 9] = 2×, then jump +90 (i.e. +10 × 9)
3900–3900 [sole number] = 1×, then jump +108 (i.e. +12 × 9)
4008–4080 [in intervals of 9] = 9×, then jump +27 (i.e. +3 × 9)
4107–4170 [in intervals of 9] = 8×, then jump +36 (i.e. +4 × 9)
4206–4260 [in intervals of 9] = 7×, then jump +45 (i.e. +5 × 9)
4305–4350 [in intervals of 9] = 6×, then jump +54 (i.e. +6 × 9)
4404–4440 [in intervals of 9] = 5×, then jump +63 (i.e. +7 × 9)
4503–4530 [in intervals of 9] = 4×, then jump +72 (i.e. +8 × 9)
4602–4620 [in intervals of 9] = 3×, then jump +81 (i.e. +9 × 9)
4701–4710 [in intervals of 9] = 2×, then jump +90 (i.e. +10 × 9)
4800–4800 [sole number] = 1×, then jump +207 (i.e. +23 × 9)
5007–5070 [in intervals of 9] = 8×, then jump +36 (i.e. +4 × 9)
5106–5160 [in intervals of 9] = 7×, then jump +45 (i.e. +5 × 9)
5205–5250 [in intervals of 9] = 6×, then jump +54 (i.e. +6 × 9)
5304–5340 [in intervals of 9] = 5×, then jump +63 (i.e. +7 × 9)
5403–5430 [in intervals of 9] = 4×, then jump +72 (i.e. +8 × 9)
5502–5520 [in intervals of 9] = 3×, then jump +81 (i.e. +9 × 9)
5601–5610 [in intervals of 9] = 2×, then jump +90 (i.e. +10 × 9)
5700–5700 [sole number] = 1×, then jump +306 (i.e. +34 × 9)
6006–6060 [in intervals of 9] = 7×, then jump +45 (i.e. +5 × 9)
6105–6150 [in intervals of 9] = 6×, then jump +54 (i.e. +6 × 9)
6204–6240 [in intervals of 9] = 5×, then jump +63 (i.e. +7 × 9)
6303–6330 [in intervals of 9] = 4×, then jump +72 (i.e. +8 × 9)
6402–6420 [in intervals of 9] = 3×, then jump +81 (i.e. +9 × 9)
6501–6510 [in intervals of 9] = 2×, then jump +90 (i.e. +10 × 9)
6600–6600 [sole number] = 1×, then jump +405 (i.e. +45 × 9)
7005–7050 [in intervals of 9] = 6×, then jump +54 (i.e. +6 × 9)
7104–7140 [in intervals of 9] = 5×, then jump +63 (i.e. +7 × 9)
7203–7230 [in intervals of 9] = 4×, then jump +72 (i.e. +8 × 9)
7302–7320 [in intervals of 9] = 3×, then jump +81 (i.e. +9 × 9)
7401–7410 [in intervals of 9] = 2×, then jump +90 (i.e. +10 × 9)
7500–7500 [sole number] = 1×, then jump +504 (i.e. +56 × 9)
8004–8040 [in intervals of 9] = 5×, then jump +63 (i.e. +7 × 9)
8103–8130 [in intervals of 9] = 4×, then jump +72 (i.e. +8 × 9)
8202–8220 [in intervals of 9] = 3×, then jump +81 (i.e. +9 × 9)
8301–8310 [in intervals of 9] = 2×, then jump +90 (i.e. +10 × 9)
8400–8400 [sole number] = 1×, then jump +603 (i.e. +67 × 9)
9003–9030 [in intervals of 9] = 4×, then jump +72 (i.e. +8 × 9)
9102–9120 [in intervals of 9] = 3×, then jump +81 (i.e. +9 × 9)
9201–9210 [in intervals of 9] = 2×, then jump +90 (i.e. +10 × 9)
9300–9300 [sole number] = 1×, then jump +729 (i.e. +81 × 9)
10029–10092 [in intervals of 9] = 8×, then jump +27 (i.e. +3 × 9)
10119–10191 [in intervals of 9] = 9×, then jump +18 (i.e. +2 × 9)
10209–10290 [in intervals of 9] = 10×, then jump +18 (i.e. +2 × 9)
10308–etc…

Rich G | Homepage | 03.01.19 - 10:43 p.m. | #











TridentScan v2.10.0 | Privacy Policy