
Question 1 
Square of 12.5 will lie between _____________. 
A.  169 and 225  B.  14 and 16 
C.  144 and 169  D.  125 and 140 
 
  

Question 2 
Square root of 420 will lie between __________. 
A.  20 and 21  B.  21 and 22 
C.  19 and 20  D.  40 and 42 
 
  

Question 3 
Simplify √1125 
A.  15 × √5  B.  9 × √5 
C.  25 × √5  D.  5 × √5 
 
  

Question 4 
A submarine periscope can see distance d (in miles) if the height of the periscope from the water surface is h (in feet). The relationship between d and h is d = 1.4 √h .
Calculate the distance a sailor can see if he lifts the periscope 16 feet above the water? 
A.  3.2 miles  B.  22.4 miles 
C.  4 miles  D.  5.6 miles 
 
  

Question 5 
Velocity v (in meter/sec) of a free falling object after travelling the distance d (in meter) is defined as
v = √64 × d .
What will be the speed of an object that has travelled 100 meter after being dropped? 
A.  16 meter/sec  B.  8 meter/sec 
C.  80 meter/sec  D.  64 meter/sec 
 
  


Question 6 
Calculate the value of
√3 × 3 × 5 × 5 × 5 × 5 . 
A.  250  B.  150 
C.  75  D.  125 
 
  

Question 7 
What is the value of
√3 × 7 × √3 × 5 × √5 × 7. 
A.  10605  B.  105 
C.  147  D.  49 
 
  

Question 8 
One person can dig a 2m × 2m × 2m hole in one hour. How long will he take to dig a 6m × 6m × 6m hole? 
A.  12 hours  B.  32 hours 
C.  36 hours  D.  27 hours 
 
  

Question 9 
Cost of constructing marble floor is $25 per square feet. How much will it cost to lay marble on a square surface with 12 feet sides? 
A.  $300  B.  $6,250 
C.  $3,600  D.  $2,500 
 
  

Question 10 
The total cost of polishing a square surface is $101,430. Cost per sq feet is $230. What is the length and width of the square surface? 
A.  20 feet  B.  21 feet 
C.  23 feet  D.  11 feet 
 
  
