9
Q:

# Find the next number in the series 3, 4, 5, 5, 12, 13, 7, 24, 25, 8, 15, ...

 A) 26 B) 16 C) 17 D) 18

Explanation:

The pattern is $3^{2}+4^{2}=5^{2}$,  $5^{2}+12^{2}=13^{2}$$7^{2}+24^{2}=25^{2}$

The next number = $8^{2}+15^{2}=17^{2}$

i.e. 17

Q:

Find the next number in the series 125, 80, 45, 20, ....

 A) 5 B) 15 C) -5 D) 10

Explanation:

The pattern is -45, -35, -25, -15

The next number = 20-15= 5

6 44
Q:

Find the next number in the series 141,137,146,130,155,119,...

 A) 147 B) 168 C) 162 D) 182

Explanation:

The pattern is -4, +9,-16, +25, -36

The next number=119+49=168

4 14
Q:

Find the next number in the series 14, 916, 2536,......

 A) 4981 B) 6481 C) 4964 D) 6449

Explanation:

The pattern is $1^{2}$$2^{2}$$3^{^{2}}$$4^{2}$$5^{2}$$6^{2}$

The next number= $7^{2}^{}$$8^{2}$ = 4964

10 160
Q:

Find the next number in the series 2, 3, 4, 8, 9, 10, 11, 16, 17, 18, 19, 20,...

 A) 27 B) 26 C) 24 D) 25

Explanation:

The pattern is three consecutive numbers and then three consecutive numbers missing.Then four consecutive numbers and then four consecutive numbers missing.Then five consecutive numbers and then five consecutive numbers missing.

The next number=20+6=26

7 112
Q:

Find the remainder when 1234 x 1235 x 1237 is divided by 8.

 A) 4 B) 2 C) 0 D) 6

Explanation:

When we divide 1234 by 8, remainder is 2

When we divide 1235 by 8, remainder is 3

When we divide 1237 by 8, remainder is 5

$\inline \fn_jvn \small \Rightarrow 2\times 3\times 5=30$

As 30 will not be the remainder because it is greater than 8,

when 30 divided by 8, remainder = 6.