Rohit prepared a project report of 225 pages, where content and page numbers are printed on one side of a paper. Due to printing mistake one page was missing and Rohit sum up all page numbers to 25268. Which among the following is a missing page ?

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28 Mar 2022 Arithmetic Rohit prepared a project report of 225 pages, where content and page numbers are printed on one side of a paper. Due to printing mistake one page was missing and Rohit sum up all page numbers to 25268. Which among the following is a missing page ?: OPtion
1) 137
2) 175
3) 159
4) 197
5) 169
6) 119
7) 157
8) 183
9) 154
10) None of these; Correct Option: 7 Best Solution (4)

G.S.Kantharao 2 years AGO

Sum pages is n(n+1)/2
=(225×226)÷2
=25425
Now missing page is =25425-25268=157
So My option no is 7👈

Like? Yes (4) | No

Varun 2 years AGO

Sum of first n natural numbers or pages = n.(n+1)/2
=> 25425-25268 = 157

Like? Yes (3) | No

Mayank Kandoi 2 years AGO

Total pages = 225
Total sum should be = 225*(1 + 225) / 2 = 25425
Total sum now = 25268
Missing sum = 25425 - 25268 = 157

Option 7

Like? Yes (3) | No (1)

Pargat Pal Singh 2 years AGO

Sum of first 225 numbers= 225x226/2= 25425
Sum of available page numbers= 25268
Missing page number = 25425-25268 = 157

Like? Yes (4) | No (2)

Dimple

India

Punjab

Time: 00:01:33

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