SSC-CGL Quant Quiz-13

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Q.1) Instead of multiplying a number by 0.72, a student multiplied it by 7.2. If his answer was 2592 more than the correct answer, then the original number was

  1.  400
  2. 420
  3.  500
  4. 560

 

Q.2)  The sum of a two digit number and the number obtained by reversing its digits is a square number. How many such numbers are there ?

  1. 5
  2. 6
  3.  7
  4.  8

 

Q.3) Mohan gets 3 marks for each correct sum and loses 2 marks for each wrong sum. He attempts 30 sums and obtains 40 marks. The number of sums solved correctly is :

  1.  15
  2.  20
  3.  25
  4. 10

 

Q.4)  The sum of the first two of three consecutive odd numbers is 33 more than the third number. What is the second number ?

  1.  35
  2. 37
  3. 39
  4. 33

 

Q.5) The LCM of two numbers is 1920 and their HCF is 16. If one of the number is 128, find the other number.

  1. 204
  2. 240
  3.  260
  4.  320

 

Q.6) Product of two co-prime numbers is 117. Then their L.C.M. is

  1.  117
  2. 9
  3. 13
  4.  39

 

Q.7) A farmer has 945 cows and 2475 sheep. He farms them into flocks, keeping cows and sheep separate and having the same number of animals in each flock. If these flocks are as large as possible, then the maximum number of animals in each flock and total number of flocks required for the purpose are respectively

  1.  15 and 228
  2. 9 and 380
  3.  45 and 76
  4.  46 and 75

 

Q.8) The greatest number that divides 411, 684, 821 and leaves 3, 4 and 5 as remainders, respectively, is

  1. 254
  2. 146
  3.  136
  4.  204

 

Q.9)  A room is 26 metres long and 10 metres broad. Its floor is to be paved by square tiles. What will be the least number of tiles required to cover the floor completely ?

  1.  50
  2.  55
  3.  60
  4. 65

 

Q.10) Find the simplest value of:

4√3/(2-√2) -30/(4√3 – 3√2) -3√2/(3-2√3)

  1. 4√2
  2. 4√3
  3. 4√6
  4. 5√6