Question

?A clock strikes once at 1 o?clock, twice at 2 o?clock, thrice at 3 o?clock and so on. How many times will it strike in 24 hours??
A. 78
?B. 136
?C. 156
?D. 196
Another interesting question

Answer 1

2 [1+2+3+......... +12] is equal to 156