The ratio of two numbers is 4:5 and their H.C.F. is 8. Then their L.C.M. is
1). 130
2). 140
3). 150
4). 160
1. The sum of two numbers is 45. Their difference is $\frac{1}{9}$ of their sum. Their L.C.M is
3. The least number to be subtracted from 36798 to get a number which is exactly divisible by 78 is
4. The HCF of two numbers is 15 and their LCM is 300. If one of the number is 60, the other is :
6. The least perfect square, which is divisible by each of 21. 36 and 66 1s
7. The smallest five digit number which is divisible by 12,18 and 21 is :
9. The smallest number, which when divided by 12 and 16 leaves remainder 5 and 9 respectively, is :