NTSE EXAM MODEL QUESTIONS

1)  Find the messing term(s) in the following patterns

 1, 1, 2, 6, 24, ?, 720

(1)  100

(2)  120

(3)  104

(4)  108

1, 1 X 1=1, 1 X 2=2, 2 X 3=6, 6 X 4=24, 24 X 5 = 120 , 120 X 6 = 720

The pattern is x , x 1, x 2, x 3, x 4,..... So, missing term = 24 x 5 = 120.

Ans : 120

2)  Directions: Find the missing terms in the following patterns. 

7, 21, 8, 72, 9, ?

(1)  18

(2)  9

(3)  3

(4)  243

1st term = 7

2nd term = 7 x 3¹ = 7 x 3 = 21

3rd term = 7 + 1 = 8

4th term = 8 x 3² = 8 x 9 = 72

5th term = 8+1 = 9

6th term = 9 x 3³ = 9 x 27 = 243 

7th term = 9+1 = 10

Ans = 243

3) Directions: Find the missing terms in the following patterns.

7, 21, 3, 24, 8, 72, ?

(1)  18

(2)  9

(3)  3

(4)  8

7 x 3 = 21,  3 x 8 = 24 , 8 x 9 = 72

 Ans = 9

4)  Directions: Find the missing terms in the following patterns.

AZ, GT, MN, ?, YB

(1)  JH

(2)  SK

(3)  SH

(4)  TS

A = 1 ( + 6 ) G = 7 ( + 6) M = 13 ( + 6)   S = 19 (+ 6) Y = 25

Z = 26 ( -6) T = 20 ( - 6)  N = 14  ( - 6 )  H = 8  ( -6 )  B = 2

Ans = SH

5) Directions: Find the missing terms in the following patterns.

1, 1, 4, 8, 9, 27, 16, ?

(1)  32

(2)  256

(3)  64

(4)  81

The series consists of squares and cubes of consecutive natural 

numbers i.e. 12, 13, 22, 23, 32, 33, 42, .

Ans  = 43 = 64.