20. Initially, when Sona and Tina left for a shopping expedition, Sona had three times the money than Tina had. They bought things amounting to Rs. 480 altogether, out of which Tina’s share was 65%. At the end of shopping, Sona was left with 4 times the amount that
Tina had. What was the amount with Tina at the beginning?

• S = 3T........(1)
  65/100*480 is amount tina spend i. e 312 while sona spend 480-312 = 168.
  (S - 168) = 4 * (T - 313).......(2)
  Substitute equation (1) in (2)
  We get
  T = 1080
• 5 years agoHelpfull: Yes(4) No(0)
• 3T-4(T-312)=168
  T=144
• 5 years agoHelpfull: Yes(1) No(7)