18.6k views
4 votes
Find the least number which leaves a remainder 7 when it's divided by any one of the number : 20, 30 and 40 .​

User Jrharshath
by
9.0k points

1 Answer

3 votes

Find LCM first

2 |20,30,40

2 |10,15,20

2 |5,15,10

3 |5,15,5

5 |5,5,5

. |1,1,1

  • 2×2×2×3×5=120

Now remainder is 7

The number is 120+7=127

User Iianfumenchu
by
8.4k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories