Question

How many 5's will be there in the number 121,122,123,... till 356 ?. a 48 b 49 c 50 d 51?

Answer 1

48........ . . . ... ..

Answer 2

Answer:  The correct option is (a) 48.

Step-by-step explanation: We are given to find the number of 5's in the numbers 121, 122, 123,  .  .  .  , till 356.

We have

the numbers from 121 to 356 that include 5 are

125, 135, 145, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 165, 175, 175, 195, 205, 215, 225, 235, 245, 250, 251, 252, 253, 254, 255, 256, 257, 258, 259, 265, 275, 285, 295, 305, 315, 325, 335, 345, 350, 351, 352, 353, 354, 355 and 356.

So, the numbers that include 5 is 48.

Thus, option (a) is CORRECT.