Question

2p+20% of (2p-1) = 7​

Answer 1

Answer:

i) 2p+ 20% of (2p-1) =7

⟹2p+  

100

20

​  

×(2p−1)=7

⟹2p+  

5

1

​  

(2p−1)=7

Multiplying both sides by 5, we get

5×2p+  

5

5×1(2p−1)

​  

=7×5

 10p+2p−1=35

 12p=35+1

 12p=36

 p=  

12

36

​  

=3

(ii) 3(2x−1)+25% of x =97

⟹6x−3+  

100

25

​  

×x=97

⟹6x−3+  

4

1

​  

x=97

Multiplying both sides by 4, we get  

  24x−12+x=97×4

  25x−12=388

       25x=388+12

      25x=400

      x=  

25

400

​  

=16

Step-by-step explanation: