जॉइन Examsbook
966 0

प्र: Some children goto ice-cream shop. 9 flavours are available there. Each child takes a cone with two different flavours. No two children take same combination and they have taken all such possible combinations. How many children went to ice cream shop ?

  • 1
    28
  • 2
    56
  • 3
    44
  • 4
    36
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 4. "36"
व्याख्या :

Answer: D) 36 Explanation: Given there are 9 flavours of ice creams.   Each child takes the combination of two flavours and no two children will have the same combination   This can be done by  ways i.e children.   Number of children=C29  = 9 x 8 / 1x 2 = 36.

पिछला अगला

Quantitative Aptitude GATE IIT JEE Bank Exams CAT

क्या आपको यकीन है

  त्रुटि की रिपोर्ट करें

कृपया संदेश दर्ज करें
त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई