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Online Arithmetic aptitude Test ( HCF and LCM )


Question 1 :

The L.C.M. of two numbers is 45 times their H C.K. If one of the numbers is 125 and the sum of H.C.F. and L.C.M. is 1150, the other number is :

a) b)
c) d)
e) f)
Question 2 :

The H.C.F. of 2/3. 8/9. 64/81 and 10/27 is :

a) b)
c) d)
e) f)
Question 3 :

The H.C.F. of 1.75, 5.6 and 7 is :

a) b)
c) d)
e) f)
Question 4 :

Let the least number of six digits, which when divided by 4, 6, 10 and 15 leaves in each case the same remainder of 2, be N. The sum of the digits in N is :

a) b)
c) d)
e) f)
Question 5 :

The H.C.F. and L.C.M of two numbers are 11 and 385 respectively. If one number lies between 75 and 125, then that number is :

a) b)
c) d)
e) f)
Question 6 :

H.C.F. of 4 x 27 x 3125, 8 x y x 25 x 7 & 16 x 81 x 5 x 11 x 49 is :

a) b)
c) d)
e) f)
Question 7 :

Three numbers which are co-prime to each other are such that the product of the first two is 551 and that of the last two a 1073. The sum of the three numbers is :

a) b)
c) d)
e) f)
Question 8 :

Which of the following has most number of divisors ?

a) b)
c) d)
e) f)
Question 9 :

252 can be expressed as a product of primes as ;

a) b)
c) d)
e) f)
Question 10 :

The H.C.F. of two numbers is 11 and their L.C.M. is 7700. If one or the numbers is 275, then the other is :

a) b)
c) d)
e) f)
Question 11 :

Let N be the greatest number that will divide 1305, 4665 and 6905, leaving the same remainder in each case Then sum of the digits in N is :

a) b)
c) d)
e) f)
Question 12 :

The maximum number of students among them 1001 pens and 910 pencils can be distributed in such a way that each student gets the same number of pens and same number of pencils is :

a) b)
c) d)
e) f)
Question 13 :

The H.C.F. of 3666 and 3444 is :

a) b)
c) d)
e) f)
Question 14 :

The L.C.M. of 22, 54, 108, 135 and 198 is :

a) b)
c) d)
e) f)
Question 15 :

A, B and C start at the same time in the same direction to run around a circular stadium. A completes a round in 2.ri2 seconds, B in 308 seconds and C in 198 seconds, all starting at the same point. After what time will they meet again at the starting noint ?

a) b)
c) d)
e) f)