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In a class of 150 students 55 speak English, 85 speak Hindi. 30 students speak neither English nor Hindi. How many speak both English and Hindi ?
ഒരു അധിവർഷത്തിൽ ( leap year ) 53 ശനിയാഴ്ചകൾ ഉണ്ടാകാനുള്ള സാധ്യത എന്ത് ?