The price of a computer was decreased by 20% to £136.
What was the price before the decrease?

£ 170 .

Step by step explanation :

Given that the price of a computer was decreased by 20% to £136. And we need to find the Original price before the decrease. So , let the earlier price be x ,

Decrease in 20 % :-

⇒ Decreased price = 20% of x

⇒ Decreased price = 20/100 × x

⇒ Decreased price = x/5

New price :-

⇒ New price = x - x/5

⇒ New price = 5x - x/5

⇒ New price = 4x/5.

But its given £ 136 , So

⇒ 4x/5 = £ 136

⇒ x = £ 136 * 5/4

⇒ x = £ 170

55/i dont know i do it for the points

step-by-step explanation:

555.99.

step-by-step explanation:

hope this