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Present age of Sara and Nita are in the ratio of 6:7 respectively. Five years ago, their ages were in the ratio of 5:6 respectively. What is Sara's present age?

A30 years

B35 years

C40 years

Dnone of these

Answer:

A. 30 years

Read Explanation:

Let present ages of Sara and Nitha are 6x and 7x respectively. After 5 years (6x-5) (7x-5) =5/6 → 36x - 30 = 35x-25 → x=5 Sara's s present age = 6x = 6 * 5 = 30 years


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രമയുടെ ഇപ്പോഴത്തെ വയസ്സ് മകന്റെ വയസ്സിന്റെ 3 മടങ്ങിനേക്കാൾ നാല് കൂടുതലാണ്. മൂന്ന് വർഷം മുമ്പ് രമയുടെ പ്രായം മകന്റെ വയസ്സിന്റെ 5 മടങ്ങ് ആയിരുന്നു. എങ്കിൽ രമയുടെ വയസ്സെത്ര?