Question

A clock buzzes 1 time at 1 o'clock, 2 time at 2 o'clock, 3 times at 3 o'clock and so on. What will be the total number of buzzes in a day?

Answer 1

the total no. of buzzes will be 2(1+2+3+4+5+6+7+8+9+10+11+12)= 156

Answer 2

Answer:

Therefore, Number of buzzes in one day or 24 hours =  156 buzzes

Step-by-step explanation:

A clock buzzes 1 time at 1 o'clock, 2 time at 2 o'clock, 3 times at 3 o'clock and so on.

So, The number of buzzes in half a day that is in 12 hours

⇒ 1 + 2 + 3 + 4 +.............+ 12

This forms an A.P. with a = 1 , l = 12 and n = 12

So, Number of buzzes in 12 hours = n/2(a + l)

⇒ Number of buzzes in 12 hours = 12/2(1 + 12)

⇒ Number of buzzes in 12 hours = 6 × 13

⇒ Number of buzzes in 12 hours = 78 buzzes

So, Number of buzzes in one day or 24 hours = 78 × 2

Therefore, Number of buzzes in one day or 24 hours =  156 buzzes