Question

Two numbers are in the ratio 5:7 and their L.C.M is 420. what is the difference between that two numbers?​

Answer 1

Answer:

first no be 5x

second no be 7x

5x+7x= 420

12x=420

so x = 420/12

= 35

so 1st no = 5×35= 175

2nd no= 7×35= 245

the difference = 245-175 = 70