Question

Rohans man give him ₹500 to buy 10 chocolates worth ₹ c each and 30 pencil worth ₹ d each with ₹ 50 to sqare

Answer 1

Step-by-step explanation:

C=45-3d

10(c)-30(d)+50=500

10(c)-30(d)=500-50

10(c)-30(d)=450

÷ 10 on both side

1(c)-3(d)=45

1(c)=45-3(d)