. Write numbers from sequence 149 to 387 like 14950.....387 . How many times
does 1 occur in the series?
Answers
Answer:
95 times does 1's occur in the series
Step-by-step explanation:
Given : Sequence 149 to 387.
To find : How many times does 1's occur in the series?
Solution :
Taking counting as
From 149 to 159- 1 occur 12 times (149 includes)
From 160 to 169 - 1 occur 11 times
From 170 to 179 - 1 occur 11 times
From 180 to 189 - 1 occur 11 times
From 190 to 199 - 1 occur 11 times
From 200 to 209 - 1 occur 1 times
From 210 to 219 - 1 occur 11 times
From 220 to 229 - 1 occur 1 times
From 230 to 239 - 1 occur 1 times
From 240 to 249 - 1 occur 1 times
From 250 to 259 - 1 occur 1 times
From 260 to 269 - 1 occur 1 times
From 270 to 279 - 1 occur 1 times
From 280 to 289 - 1 occur 1 times
From 290 to 299 - 1 occur 1 times
From 300 to 309 - 1 occur 1 times
From 310 to 319 - 1 occur 11 times
From 320 to 329 - 1 occur 1 times
From 330 to 339 - 1 occur 1 times
From 340 to 349 - 1 occur 1 times
From 350 to 359 - 1 occur 1 times
From 360 to 369 - 1 occur 1 times
From 370 to 379 - 1 occur 1 times
From 380 to 387 - 1 occur 1 times
Therefore, Total times are 12+11(6)+1(17)=12+66+17=95
So, 95 times does 1's occur in the series