The average of marks scored by the students of a class is 68. The average of the girls in the class is 80 and that of boys is 60. What is the percentage of boys in the class?
A40 %
B60 %
C65 %
D70 %
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ഒരു തൊഴിലാളിയുടെ തുടർച്ചയായ അഞ്ച് ദിവസത്തെ കൂലി 800, 760, 780, 750, 720 രൂപ എന്നിവയാണ് . 6 ദിവസത്തെ ശരാശരി കൂലി 775 രൂപയായാൽ ആറാം ദിവസത്തെ കൂലി എത്ര ?
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