Scholastic Aptitude Test - Mathematics - Number System

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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
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