1.  Find the H.C.F. of 120, 140, 180 and 420. 
a.   15 
b.   20 
c.   25 
d.   30




2.  Find the least number which when divided by 36, 48 and 54 which will leaves the same remainder 7. 
a.   436 
b.   432 
c.   437 
d.   439




3.  Find the greatest number which on dividing 304, 554 and 854 leaves equal remainder. 
a.   35 
b.   65 
c.   50 
d.   60




4.  Find the greatest number which on dividing 277, 757 and 3307 leaves the same remainder 7 in each case. 
a.   30 
b.   15 
c.   60 
d.   25




5.  Find the L.C.M. of 9/10, 12/25, 18/35, 21/40. 
a.   5/252 
b.   3/1400 
c.   252/5 
d.   1400/3




6.  Find the greatest number that will divide 63, 45 and 69 so as to leave the same remainder. 
a.   6 
b.   9 
c.   8 
d.   10




7.  A wholesale sugar delar has 780kilogram, 1650kilogram and 510kilogram sugar of three different qualities. He has to pack it all into boxes of equal size without mixing. Find the capacity of the largest possible box. 
a.   15 
b.   30 
c.   25 
d.   12




8.  Find the least perfect square number whcih is divisible by 2,3,4,5,6. 
a.   3600 
b.   900 
c.   2500 
d.   1600




9.  The H.C.F and L.C.M. of any two numbers are 2040 and 170 respectively. If one of the two number is 510, find the other number. 
a.   255 
b.   340 
c.   680 
d.   260




10.  Find the least five digits which is exactly divisible by 32, 36, 60, 90 and 144. 
a.   10200 
b.   10080 
c.   11250 
d.   13500




11.  Find the greatest number which will divide 400, 435 and 541 leaving remainder 9, 10 and 14 respectively. 
a.   16 
b.   15 
c.   13 
d.   17




12.  The product of H.C.F. and L.C.M. of two numbers is 9072. If one of the numbers is 72, find the other number? 
a.   105 
b.   112 
c.   126 
d.   165




13.  find hcf of 902,1394,3321 ????????? 
a.   41 
b.   82 
c.   3221 
d.   56




14.  I am a number between 45 and 50 two of my factors are 2 and 6 i am a common multiple of 6 and 3 what number am i ? 
a.   48 
b.   33 
c.   45 
d.   1




15.  and solved the lcm and of 24 and 84 
a.   140 
b.   199 
c.   168 
d.   205




16.  lcm of 24 and 84 
a.   444 
b.   788 
c.   168 
d.   4343



