CHAPTER-1 REAL NUMBER (SET-1)

Questions in this test

1. Find the HCF of 196 and 38220 using Euclid’s division algorithm.
2. What is the largest number which exactly divides 626, 3127 and 15628 and leaves remainders of 1, 2 and 3 respectively?
3. The length, breadth and height of a room are 8m 25cm, 6m 75cm, and 4m 50cm respectively. Determine the longest rod which can measure the three dimensions of room exactly?
4. If the HCFof 408 and 1032 is expressible in the form 1032m - 408 × 5, field m
5. Find the largest number which divides 615 and 963 leaving remainder 6 in each case.
6. Two tankers contain 850 lities and 660 litres of petrol respectively. Find the maximum capacity of a container which can measure the petrol of either tanker in exact number of times.
7. Express 7325 as a product of its prime factors.
8. Given that HCF $(306, 656)$ = 9, find LCM $(306, 657)$
9. The HCF of two numbers is 145 and their LCM is 2175. If one number is 725, find the other.
10. Find the greatest number of 6 digits exactly divisible by 24,15 and 36.