Question

The lcm and hcf of two number are 140 and 14 if one of the no. Is 28 find the other number

Answer 1

Hi !

Here's your answer ...

LET THE NO.s be N1 & N2

L.C.M = 140
H.C.F = 14
N1 = 28
N2 = ?

WE KNOW THAT,

L.C.M × H.C.F = Product of numbers

I.E. L.C.M × H.C.F = N1 × N2

140 × 14 = 28 × N2

1960 = 28 × N2

1960 / 28 = N2

N2 = 70
__________________________
Final Answer :
The other number is 70.
__________________________
•hope this helps• !!!#