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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The average of 11 numbers arranged in an order is 41. The average of the first five numbers is 18 and that of the last five numbers is 64. What is the sixth number?
a , 1/a എന്നിവയുടെ ശരാശരി M ആണ് . എങ്കിൽ താഴെപ്പറയുന്നവയിൽ a², 1/a² എന്നിവയുടെ ശരാശരി ഏതാണ് ?
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The average of a ten numbers is 72.8. The average of the first six numbers is 88.5 and the average of the last five numbers is 64.4. If the 6th number is excluded, then what is the average of the remaining numbers?
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