തുടർച്ചയായ 5 എണ്ണൽ സംഖ്യകളുടെ ശരാശരി 13 ആയാൽ അവയിൽ ആദ്യത്തെ സംഖ്യയേത് ?
A10
B9
C11
D12
No.1 PSC Learning App
★
★
★
★
★
Related Questions:
The average of 18 numbers is 30. The average of 1st 8 numbers is 17 and the average of the last 8 numbers is 25. What is the average of the 9th and 10th numbers?
14,28,30,68,77,115 ഈ സംഖ്യകളുടെ ശരാശരി എത്ര ?
The average age of 20 students is 12 years. If the teacher's age is included ,average increases by one. The age of the teacher is
Find the average of the squares numbers which lie between 20 and 70.
What is the average of 5 consecutive odd numbers A, B, C, D, E?