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Answer : 4. "18"
नीचे दिए गए चित्र में त्रिभुजों की संख्या ज्ञात कीजिए?
Q:
नीचे दिए गए चित्र में त्रिभुजों की संख्या ज्ञात कीजिए?
- 115false
- 213false
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Answer : 4. "18"
Explanation :
Total number of triangles = 14 + 2(combination of triangles [(10,9),(1,3),(2,4),(11,12)]) = 18
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Since Nithya and Suganya exchange places, so Rita’s new position is the same as Monika’s earlier position. This position is 17th from the right and 10th from the left. Therefore Number of girls in the row = (16 + 1 + 9) = 26.
