Answer:
(1) 20%
Step-by-step explanation:
→ Find the difference in price
200 - 160 = 40
→ Divide difference by original price
40 ÷ 200 = 0.2
→ Multiply the answer by 100
0.2 × 100 = 20%
2x-3+7x-10=32
9x-13=32
9x=32+13
9x=45
x=5
Step-by-step explanation:


Let assume that

We know,

So, using this, we get

Now, we use Method of Substitution, So we substitute

So, above expression can be rewritten as




So,

Thus,





<u>Hence, </u>

<u>Hence, Option (d) is </u><u>correct.</u>