Two numbers are in the ratio 1 : 2. If 7 is added to both, their ratio changes to 3 : 5. Find the greater number.

मान लीजिए संख्याएँ x और 2x हैं। (x+7)/(2x+7) = 3/5 => 5x + 35 = 6x + 21 => x = 14। बड़ी संख्या = 2x = 28।