state gov SSB Odisha Junior Assistant Mock Test 2024 Quantitative Aptitude Probability

ଏକ ଶ୍ରେଣୀରେ, 15 ଜଣ ପୁଅ ଏବଂ 10 ଝିଅ ଅଛନ୍ତି । ତିନି ଜଣ ଛାତ୍ର ଅନିୟମିତ ଭାବରେ ମନୋନୀତ ହୁଅନ୍ତି | 1 ଝିଅ ଏବଂ 2 ପୁଅ ଚୟନ ହେବାର ସମ୍ଭାବ୍ୟତା ହେଉଛି:

1
\(\frac{21 }{46 }\)
2
\(\frac{25 }{117 }\)
3
\(\frac{ 1}{50 }\)
4
\(\frac{3 }{25 }\)
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