Question

Find the value for x : x/3-x/5=20
300
150
75
None​

Answer 1

Answer:

150

Step-by-step explanation:

x/3 - x/5 = 20

{take the lcm}

x*5/3*5 - x*3/5*3 = 20

5x/15 - 3x/15 = 20

2x/15 = 20

{multiply both sides i.e. lhs and rhs by 15}

2x/15*15 = 20*15

2x = 300

{divide both sides by 2}

2x/2 = 300/2

x = 150