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കിലോ ഗ്രാമിന് 40 രൂപ വിലയുള്ള തേയിലയും കിലോഗ്രാമിന് 30 രൂപ വിലയുള്ള തേയിലയും ഏതു തോതിൽ ചേർത്താൽ 45 രൂപയ്ക്ക് വിൽക്കുമ്പോൾ 25 ശതമാനം ലാഭം കിട്ടും ?

A2:3

B5:4

C3:2

D3:7

Answer:

C. 3:2

Read Explanation:

45 രൂപക്ക് വിൽക്കുമ്പോൾ 25 % രൂപ ലാഭം കിട്ടണമെങ്കിൽ വില = 45 × 100/125 = 36 രൂപ ആയിരിക്കണം . x : y എന്ന അംശബന്ധത്തിലാണ് ചേർക്കുന്നതെങ്കിൽ 40x + 30y = (x+y)36 40x + 30y = 36x + 36y 4x = 6y x/y = 6/4 = 3/2 x : y = 3 : 2


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