Practice Test

Q1) Which of the following is true? Show Answer

Q2) Find the greatest number that divides 43, 91, 183 so as to leave the same remainder in each case. Show Answer

Q3) Find the greatest number that divides 43, 91 and 183 so as to leave the same remainder in each case. Show Answer

Q4) The least multiple of 7, which leaves a remainder of 4, when divided by 6, 9, 15 and 18: Show Answer

Q5) The least number which should be added to 2497 so that the sum is exactly divisible by 5, 6, 4 and 3 is: Show Answer

Q6) A, B and C start at the same time in the same direction to run around a circular stadium. A completes a round in 252 seconds, B in 308 seconds and C in 198, all starting at the same point. After what time will they again at the starting point? Show Answer

Q7) Three numbers are in the ratio of 3:4:5 and their L.C.M is 2400. Their H.C.F. is: Show Answer

Q8) The greatest number which on, dividing 1657 and 2037, leaves a remainder of 6 and 5 respectively is: Show Answer

Q9) The L.C.M of two numbers is 48. The numbers are in the ratio 2:3. So,the sum of the number is: Show Answer

Q10) If the L.C.M of two numbers is 55 and the H.C.F. and L.C.M of these numbers are 5 and 120 respectively, then the sum of the reciprocals of the numbers is equal to: Show Answer

Q11) Find the highest common factor of 36 and 84. Show Answer

Q12) The product of two numbers is 2028 and their H.C.F. is 13. The number of such pairs is: Show Answer

Q13) The product of two number is 4107. If the H.C.F. of these numbers is 37, then the greater number is: Show Answer

Q14) The G.C.D of 1.08, 0.36 and 0.9 is : Show Answer

Q15) Mr. Brackett works in a factory with his two sons. He is allowed to take a break every 140 minutes while his two sons are allowed to take breaks every 210 minutes and 280 minutes . How many minutes will they have to wait after their first break together to get together again? Show Answer