self
Maths Puzzle
Numerical Ability
Number System
125,80,45,20,?
A. 5 B. 8
C. 10 D. 12
Read Solution (Total 4)
-
- A. 5
Series decreased by 5 *9,5 *7,5 *5,5 *3(i.e, 45,35,25,15)
125-45 =80
80 -35 =45
45 -25 =20
20 -15 =5
Final sequence = 125,80,45,20,5 - 12 years agoHelpfull: Yes(7) No(0)
- 125-45=80
80-35=45
45-25=20
20-15=5
thus option is A. 5 - 12 years agoHelpfull: Yes(2) No(1)
- Ans: A - 5
5*(5*5) ,5*(4*4) ,5*(3*3) ,5*(2*2) ,5*(1*1)
125,80,45,20,5
- 8 years agoHelpfull: Yes(0) No(0)
- 5*25=125
5*16=80
5*9=48
5*4=20
multiply 5 with 2*2
3*3
4*4
5*5...... - 8 years agoHelpfull: Yes(0) No(0)
self Other Question
n the series 2, 6, 18, 54, ...... what will be the 8th term ?
A. 4370 B. 4374
C. 7443 D. 7434
6.
1, 1, 4, 8, 9, 27, 16, ?
A. 32 B. 64
C. 81 D. 256