The marks of a student were entered as 88 instead of 68. Due to this, the average marks of the class increased by 0.5. What is the number of students in the class?
A10
B20
C30
D40
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Related Questions:
What is the average of the numbers 14, 18, 16, 15, 17?
Average weight of 21 workers in the shop 45 kg, If the weight of the Shop manager is included, the average is increased by 3 kg then what is the weight of the manager?
The average price of three items is Rs. 14,265. If their prices are in the ratio 7 : 9 : 11, then the price of the costliest item is:
ഒരു ക്ലാസിലെ 30 കുട്ടികളുടെ ശരാശരി വയസ്സ് 10 ആണ്. ടീച്ചറിനെയും കൂടി ചേർത്തപ്പോൾ ശരാശരി വയസ്സ് 11 ആയി. എങ്കിൽ ടീച്ചറുടെ വയസ്സ് എത്ര?
The average of the first twelve multiples of 11 is: