If the sum of the first n terms of an arithmetic progression is 7n2 + – McqOptions

MCQOPTIONS

1.	If the sum of the first n terms of an arithmetic progression is 7n2 + 2n, then the sum of its third and fifth terms is:
A.	75
B.	120
C.	102
D.	12
Answer» D. 12

Discussion

No Comment Found

Related MCQs

If y is an integer, then (y3 - y) is always multiple of _________.
Find the quotient when x2 + x - 72 is divided by x – 8.
Find the unit place digit in the expression given below.1! + 2! + 3! + 4! + ....... + 20!
Consider the following three sets of numbersA. 2, 5, 9B. 1, 6, 10C. 3, 4, 8Which of the following represents correct ascending order of the averages of three sets A, B and C?Choose the correct answer from the options given below
If the 6-digit number 479xy9 is divisible by each of 7, 11, 13, then (x – y) is equal to-
If you have two straight sticks of length 7.5 feet and 3.25 feet, what is the minimum length can you mesaure?
A digital watch X beeps every 30 seconds while watch Y beeps every 32 seconds.They beeped together at 10 AM.The immediate next time that they will beep together is _____.
If the number 687x29 is divisible by 9, then the value of 2x is:
Find the LCM of 18, 33 and 37.A. 2442B. 7326C. 814D. 1221
If x = 3 – √2 then find the value of 3x2+ 2x – 4