Being Holmes S2: Beat the Hackers (R3 Results + R4 pg 30) T4 - Page 25

Here you go my weird solving methods 🤣

6) 2450, 1000, 420, 188, ___ 95.2

Sequence: (2450/2.5)+20, (1000/2.5)+20,(420/2.5)+20, (188/2.5)+20

And if you want my longer version

Step 1 : 2450- 1000= 1450, 1000-420= 580, 420-188=232

Step 2 : 1450/580 = 2.5, 580/232= 2.5 , there 232/y= 2.5, y = 232/2.5 = 92.8

Step 3 : 2450-1000=1450, 1000-420= 580, 420-188= 232, 188- X= 92.8, X= 188-92.8 = 95.2

7) 419, 421, 431, 433, ___ 443

Sequence : 3-1 ( 431-419 = 12), 4-2 ( 433-421 =12 ), 5-3 ( x- 431= 12, x= 431+12 = 443)

Originally posted by: Bee222

Originally posted by: hasini009

Prime numbers in order

Originally posted by: hasini009

first wrote 439. later changed it to 443 thinking of Shreya's rules. I thought we must do some calculations

Haan wahi exactly isiliye mene itna time lagayi send karne mein but i guess prime number bhi sequence calculated hai no? Idk🤷‍♀️

Ok 7th was that simple .. and I was doing all kinds of calculations 🥲

It took me the most time even

Ye prime numbers ne mere 8 points le liye😭. I hate prime numbers😡

Originally posted by: hasini009

first wrote 439. later changed it to 443 thinking of Shreya's rules. I thought we must do some calculations

So how many points are gone for wrongs answers ?

Originally posted by: SilentEyes7

acha tha...

Mein exam ki chakkar mein 1.5 month mein promote hui...

Last 1 week mein mein 3000 post ki thi...🤪

My methods:

1) 5, 10, 15, 20, 25, ___

5 table

2) 2, 4, 8, 16, __

multiplied by 2

3) 10, 25, 55, 115, ___

10+15, 25+30, 55+60, 115+120

4) 73, 64, 55, 46, ___

9 table +1

5) 4, 9, 16, 25, ___

2,3,4,5,……square

6) 2450, 1000, 420, 188, ___

1450, 580, 232,

2.5, 2.5,

2450-1000= 1450

1000-420= 580

420-188= 232

1450/580= 2.5

580/232= 2.5

Common difference: 2.5

5th term:

232/2.5= 92.8

188-92.8= 95.2

7) 419, 421, 431, 433, ___

Diff: +2, +10, +2,

Next +10.

8) 11, 22, 33, 44, ____

11 table

9) 80, 40, 20, 10, ____

Divided by 2

10) 9000, 1008, 120, ____

Divided by 9

+ 8

11) 8, 13, 21, 34, ____

Fibonacci series

12) 5000, 620, 72.5, 4.0625, ____

Divided by 8

minus 5

13) 21609, 3087, 441, 63, ___

Divided by 7

14) 9, 50, 296, 1772, ____

multiplied by 6

minus 4

15) 6, 12, 18, 24, _

6 table