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Dnyanbhasha Marathi Pratishthan | ज्ञानभाषा मराठी प्रतिष्ठान

✍️ गणिताशी गट्टी प्रश्न क्र. ११२ ✍️

✍️ गणिताशी गट्टी प्रश्न क्र. ११२ ✍️

हेमंत आपल्या मासिक पगाराच्या ३०% रक्कम घरभाड्यापोटी देतो तर उर्वरित रकमेच्या ८०% रक्कम घरखर्च व इतर सर्व खर्चासाठी वापरतो तर हेमंतकडे पगाराच्या किती टक्के रक्कम शिल्लक राहते?

➡️ उत्तर :-

हेमंतचा मासिक पगार x रुपये आहे असे मानू.

➡️ म्हणून,

घरभाड्यापोटी द्यावी लागणारी रक्कम

=  x चे ३०%

=  x × ३०/१००

= ₹ ३x/१०

➡️ घरभाडे देऊन उरलेली रक्कम

= x – ३x/१०

= (१०x – ३x)/१०

= ₹ ७x/१०

➡️ घरखर्च व इतर सर्व खर्चासाठी लागलेली रक्कम

= (७x/१०) चे ८०%

= (७x/१०)(८०/१००)

= ₹ ५६x /१००

➡️ बचत = मासिक पगार – मासिक खर्च

बचत = x – [(३x/१०)+ (५६x/१००)]

∴ बचत = x – [ (३०x/१००) + ( ५६x/१००)]

∴ बचत = x – [ (३०x + ५६x) / १००]

∴ बचत = x – [ ८६x/१००]

∴ बचत = (१००x – ८६x)/१००

∴ बचत = ₹ १४x/१००

➡️ म्हणून,

बचतीची टक्केवारी = (बचत / पगार) × १००

∴ बचतीची टक्केवारी = [ (१४x/१००) /x ]× १००

∴ बचतीची टक्केवारी = १४

➡️ म्हणून हेमंतकडे पगाराच्या १४% रक्कम शिल्लक राहते.

 

©अजित तिजोरे – ८०९७६१७०२०

#ज्ञानभाषामराठीप्रतिष्ठान

#गणिताशीगट्टी

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