The average of all prime numbers 21 to 50 is (round off to one decimal number)
(A) 35.9
(B) 34.8
(C) 33.7
(D) 32.9
The average per day income of A, B and C is Rs. 450. If the average per day income of A and B be Rs. 400 and that of B and C be Rs. 430, the per day income of B is:
(A) Rs . 300
(B) Rs . 310
(C) Rs. 415
(D) Rs . 425
The average of nine consecutive odd numbers is 53. The least odd number is:
(A) 22
(B) 27
(C) 35
(D) 45
In a certain year, the average monthly income of a person was Rs.3,400. For the first eight months of the years, his average monthly income was Rs. 3,160 and for the last five months, it was Rs.4,120. His income in the eighth month of the year was:
(A) Rs . 3,160
(B) Rs . 5,080
(C) Rs . 15,520
(D) Rs . 5, 520
The present age of a father is 3 years more than three times the age of his son. Three years hence, father's age will be 10 years more than twice the age of the son. The father's age is:
(A) 33 years
(B) 39 years
(C) 45 years
(D) 40 years
Get the Examsbook Prep App Today