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Friday, May 27, 2016

Important Maths Question And Answer

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1.Find the greatest number that will divide 43, 91 and 183 so as to leave the same remainder in each case.
A.     4    B.     7
C.     9    D.     13

Answer: Option A


2.The H.C.F. of two numbers is 23 and the other two factors of their L.C.M. are 13 and 14. The larger of the two numbers is:

A.     276    B.     299
C.     322    D.     345


Answer: Option C

3.Six bells commence tolling together and toll at intervals of 2, 4, 6, 8 10 and 12 seconds respectively. In 30 minutes, how many times do they toll together ?

A.     4    B.     10
C.     15    D.     16

Answer: Option D




4.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.     4    B.     5
C.     6    D.     8


Answer: Option A



5.The greatest number of four digits which is divisible by 15, 25, 40 and 75 is:
A.     9000    B.     9400
C.     9600    D.     9800

Answer: Option C


6.The product of two numbers is 4107. If the H.C.F. of these numbers is 37, then the greater number is:

A.     101    B.     107
C.     111    D.     185


Answer: Option C



7. Three number are in the ratio of 3 : 4 : 5 and their L.C.M. is 2400. Their H.C.F. is:

A.     40    B.     80
C.     120    D.     200



Answer: Option A


8.The G.C.D. of 1.08, 0.36 and 0.9 is:

A.     0.03    B.     0.9
C.     0.18    D.     0.108


Answer: Option C


9. The product of two numbers is 2028 and their H.C.F. is 13. The number of such pairs is:
A.     1    B.     2
C.     3    D.     4



Answer: Option B


10.The least multiple of 7, which leaves a remainder of 4, when divided by 6, 9, 15 and 18 is:

A.     74    B.     94
C.     184    D.     364


Answer: Option D

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