allery50 വിദ്യാർത്ഥികളുള്ള ക്ലാസ്സിൽ 30 പേർ ഗണിതവും 25 പേർ ശാസ്ത്രവും പഠിക്കുന്നു. 15 പേർ രണ്ടും പഠിക്കുന്നു. ഈ രണ്ടു വിഷയങ്ങളിൽ ഒന്നും പഠിക്കാത്തവർ എത്ര?
A5
B12
C10
D8
Answer & Solution
Correct answer: C. 10
യൂണിയൻ = 30 + 25 - 15 = 40 വിദ്യാർത്ഥികൾ, അതിനാൽ 50 - 40 = 10 പഠിക്കുന്നില്ല.
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