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✍️गणिताशी गट्टी प्रश्न क्र. ५३✍️
काही पुरुष एक काम ५० दिवसात पूर्ण करतात. जर पुरुषांची संख्या १० ने वाढली तर ते काम पूर्ण करण्यास २० दिवस कमी लागतात. सुरुवातीला किती पुरुष होते?
➡️उत्तर :-
सुरुवातीला x पुरुष होते असे मानू.
➡️ दिलेल्या माहितीनुसार,
( x + १० ) / x = ५० / ३०
३( x + १० ) = ५x
३x + ३० = ५x
३० = ५x – ३x
३० = २x
x = ३०/२
x = १५
म्हणून सुरुवातीला १५ पुरुष होते.
©अजित तिजोरे – ८०९७६१७०२०
#ज्ञानभाषा मराठी प्रतिष्ठान
#गणिताशी गट्टी