Question

product of 2 numbers are multiplied by 15 and 720 and the quotient is 3 . find the numbers

Answer 1

Answer:

Factorise the number 720

720=1*2*3*2*5*2*2*3

Group them into three parts and keeping one number as 1 , will get a set of

1,2,360;1,3,240,1*4*180; 1*5*144,1*6*120;1*8*90; 1*9*80; 1*10*72;1*12*60;1*15*48;1*16*45;1*18*40; 1*20*36;1*24*30….( When you second number as 30, third number will be 24 which is already listed)

Then similarly with first number as 2, just go on