App Logo

No.1 PSC Learning App

1M+ Downloads
7-ൻറ ആദ്യ 21 ഗുണിതങ്ങളുടെ ശരാശരി എത്ര?

A70

B77

C84

D91

Answer:

B. 77

Read Explanation:

ഗുണിതങ്ങളുടെ ശരാശരി സംഖ്യ x (n+1)/ 2 = 7x(21+1)/2 = 7X22/2 = 77


Related Questions:

The average of first 120 odd natural numbers, is:
The average weight of A, B, and C is 55 kg. The weight of C is 10 kg more than A and 5 kg more than B. The average weight of A, B, C, and D, if D's weight is 19 kg more than C, is:
Average age of three boys is 22 years. If the ratio of their ages is 6 : 9 : 7, then the age of the youngest boy is
The ratio of the number of boys and girls in a class is 5 : 7. The average weight of boys is 56 kg and that of girls is 50 kg. What is the average weight (in kg) of all the boys and girls in the class?
The average of five numbers a, b, c, d and e is 17.2. The average of the numbers b, c and d is 15. If a is equal to 10, find the number e.