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Question 1
In a factory, there are three different qualities of oils of different amounts. 1404 litres of first quality, 2364 litres of second quality and 2496 litres of third quality. Find the least possible number of bottles of equal size in which oils of different qualities can be filled without mixing.
Question 2
If the HCF and LCM of two consecutive (positive) even numbers be 2 and 84 respectively, then the sum of the numbers are:
Question 3
If P = 23.310.5 and Q = 25.3.7, then HCF of P and Q is:
Question 4
The sum of two numbers is 528, and their HCF is 33. How many pairs of such numbers can be?
Question 5
The HCF and LCM of 1.6, 8 and 2.4 is
Question 6
In a school, 391 boys and 323 girls have been divided into the largest possible equal classes, such that each class contains same number of boys and girls together. What is the number of classes?
Question 7
Four different electronic devices make a beep after every 30 minutes, 1 hour, 1 hour 30 minutes and 1 hour 45 minutes respectively. All the device beeped together a.m. 12 noon. They will again beep together at:
Question 8
If x : y be the ratio of two whole numbers and z be their HCF, then the LCM of those two numbers is
Question 9
Find the number lying between 900 and 1000 which when divided by 38 and 57 leaves in each case a remainder 23.
Question 10
What is the greatest number which will divide 110 and 128 leaving a remainder 2 in each case?
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Nov 1SSC & Railway
