alleryരണ്ട് സുഹൃത്തുക്കളുടെ വയസ്സുകൾ 4 : 5 എന്ന അനുപാതത്തിലാണ്. 6 വർഷങ്ങൾക്ക് ശേഷം അത് 5 : 6 ആകും. ഇളയവന്റെ ഇപ്പോഴത്തെ പ്രായം
A28
B24
C30
D20
Answer & Solution
Correct answer: B. 24
(4x + 6)/(5x + 6) = 5/6 പരിഹരിക്കുമ്പോൾ x = 6 ലഭിക്കും, അതിനാൽ ഇളയത് 4 x 6 = 24 ആണ്.
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