### Scholastic Aptitude Test - Mathematics - Number System

#### Question - 1

Find the units digit in (364)102+(364)103

• A 4
• B 0
• C neither 4 nor 0
• D 3

#### Question - 2

The expression 122n-82n is divisible by

• A 110
• B 132
• C 80
• D none of these

#### Question - 3

The total number of factors of 140 is

• A 4
• B 16
• C 15
• D 12

#### Question - 4

The value of ($8.3\overline { 1 } +0.\overline { 6 } +0.00\overline { 2 }$ ) is equal to

• A $8.91\overline { 2 }$
• B $8.\overline { 912 }$
• C $8.\overline { 979 }$
• D $8.97\overline9$

#### Question - 5

The value of $(0.34\overline { 67 } +0.13\overline { 33 } )$ is equal to

• A $0.4\overline { 8 }$
• B $0.\overline { 48 }$
• C $0.48\overline { 01 }$
• D 0.48

#### Question - 6

The number of pairs lying between 40 and 100 with their RCFas 15 is

• A 3
• B 4
• C 5
• D 6

#### Question - 7

About the number of pairs which have 16 as their HCF and 136 as their LCM,we can defiantly say that

• A No such pair exists
• B only one such pair exists
• C only two such pair exists
• D many such pair exists.

#### Question - 8

Find the least number which when divided by 16,18,20 and 25 leaves 4 as remainder in each case, but. when divided by 7 leaves no remainder

• A 17004
• B 18000
• C 18002
• D 18004

#### Question - 9

The HCF and LCM of two numbers are 84 and 21 respectivelyI.f the ratio of the two number is 1:4, then the larger of two number is

• A 12
• B 48
• C 84
• D 108

#### Question - 10

If the unit digit is the product (459 $\times$ 46 $\times$ 28* $\times$ 484) is 2, the digit in place of * is

• A 3
• B 5
• C 7
• D none of these     