Question

REAL NUMBERS
1.33
5. Find the least number that is divisible by all the numbers between 1 and 10 (both
inclusive)
6. What is the smallest number that, when divided by 35,56 and 91 leaves remainders of 7
in each case?
7. In a morning walk three persons step off together, their steps measure 80 cm,
85 cm and 90 cm respectively. What is the minimum distance each should walk so that
he can cover the distance in complete steps?
8. Determine the number nearest to 110000 but greater than 100000 which is exactly
divisible by each of 8,15 and 21.
9. Find the smallest number which leaves remainders 8 and 12 when divided by 28 and 32
respectively
10. Find the smallest number which when increased by 17 is exactly divisible by both 520
and 468.
11. A circular field has a circumference of 360 km. Three cyclists start together and can cycle
48,60 and 72 km a day, round the field. When will they meet again?
12. The LCM and HCF of two numbers are 180 and 6 respectively. If one of the numbers is 30,
find the other number,
13. The HCF of two numbers is 16 and their product is 3072. Find their LCM.
14. The HCF of two numbers is 145 and their LCM is 2175. If one number is 725, find the
other.
15. Can two numbers have 16 as their HCF and 380 as their LCM? Give reason.
INCERT]
16. Given that HCF (306, 657) = 9, find LCM (306, 657).
ANSWERS​

Answer 1

Answer:

your qs is very difficult and very lenghty then tomorrow i will try to answer you ok