Question

greatest four digit number which when divided by 10,15,21and 28 leaves remainder 4,9,15,22 respectively​

Answer 1

Answer:

10x-4 = 15y-9=21z-15= 28a-22

Step-by-step explanation:

9654

LCM of 10,15,21and 28 is 420

10-4=15-9=21-15=28-22=6

now divide 9999 by 420

9999= 420×23+339

9999-339=9660

9660-6 = 9654 is the greatest four digit number