(A) 38
(B) 39
(C) 40
(D) 41
Answer: (D) 41
Solution:
1, 2, 5, 14, __________?
Category: Mathematics MCQs
Mathematics Multiple Choice Questions (MCQs) Test with Answers.
What is the sum of the first 12 numbers of the series: 2 , 6, 10, 14, …. ?
(A) 260
(B) 268
(C) 280
(D) 288
Answer: (D) 288
Solution:
This is an arithmetic sequence with common difference of 4. The first element is 2, and total elements are 12. So, a1 = 1, d = 3 and n = 12. So, by using the formula of nth term of an arithmetic sequence, first we will find the 12th term.
Now, by using the formula for the sum of n elements of an arithmetic sequence, we have
A car parking charges “n” dollars for the first hour, and “m” pence for every additional hour. What amount it will charge if a car stayed for 5 hours?
(A) n + 5m
(B) n + 4m
(C) m + 4n
(D) m + 5n
Answer: (B) n + 4m
Solution:
First hour charges = n, remaining 4 hour charges = 4m. Total charges = n + 4m
In a city with population 100000, 20% have internet connection. And those who have internet connection, 15% use PTCL internet service. How many people have internet service other than PTCL?
(A) 3,000
(B) 7,000
(C) 12,000
(D) 17,000
Answer: (D) 17,000
Solution:
What is solution set of the equation: x2+ 4x + 3 =0
What is the solution set of the equation: x2+ 4x + 3 =0
(A) {1, 3}
(B) {–1, 3}
(C) {1, –3}
(D) {–1, –3}
Answer: (D) {–1, –3}
Solution:
