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3 വർഷം മുമ്പ്, രാജുവിന്റെയും ദീപക്കിന്റെയും പ്രായം യഥാക്രമം 5 : 9 ആയിരുന്നു. 5 വർഷത്തിനുശേഷം, ഈ അനുപാതം 3 : 5 ആയി മാറും. രാജുവിന്റെ ഇപ്പോഴത്തെ പ്രായം കണ്ടെത്തുക.

A40

B43

C45

D48

Answer:

B. 43

Read Explanation:

(5x + 8) / (9x + 8) = 3/5 5 × (5x + 8) = 3 × (9x + 8) 25x + 40 = 27x + 24 27x – 25x = 40 – 24 2x = 16 x = 16/2 x = 8 3 വർഷം മുമ്പ് = 5 × 8 = 40 ഇപ്പോഴത്തെ പ്രായം = 40 + 3 = 43 വയസ്സ്


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