Topics

General Knowledge
General Science
General English
Aptitude
General Computer Science
General Intellingence and Reasoning
Current Affairs
Exams
Elementary Mathematics
English Literature

Consider all those two-digit positive integers less than 50, which when divided by 4 yield unity as remainder. What is their sum?

A) 310
B) 314
C) 318
D) 323

Correct Answer:

A) 310

Description for Correct answer:
Such numbers less than 50 when divided by 4 yield unity as remainder is 13, 17, 21, 25, 29, 33, 37, 41, 45, 49 Sum of all these numbers =13+17+21+25+29+33+37+41+45+41 = 310

Part of solved CDS Maths(1) questions and answers : Exams >> CDSE >> CDS Maths(1)

Comments

Similar Questions

1). If every side of an equilateral triangle is doubled. then the area of new triangle becomes I: times the area of the old one. What is h equal to ?

A). \( \sqrt{3}\)

B). 2

C). 4

D). 8

2). If \(a_{n}= 3 - 4n \), then what is \(a_{1} + a_{2} + a_{3} + ...... + a_{n}\) equal to \( [ 1 + 2 + 3 + ..... + n = \frac{n(n + 1)}{2}]\)

A). -n(4n-3)

B). -n(2n-1)

C). -\(n^{2}\)

D). -n(2n-1)

3). A train travels at a speed of 40km/hr and another train at a speed of 20m/s. what is the ration of speed of the first train to that of the second train?

A). 2:01

B). 5:09

C). 5:03

D). 9:05

4). \( \left( x+y\right)\) : \( \left( x-y\right)\)= 3 : 5 and xy = positive imply that

A). \(x \) and \( y\) are both positive

B). \(x \) and \( y\) are both negative

C). One of them is positive and one of them is negative

D). No real solutions for \( x\) and \( y\) exist

5). How many pairs of \( X\) and \( Y\) are possible in the number \( 763X4Y2\), if the number is divisible by 9?

A). 8

B). 9

C). 10

D). 11

6). What is the remainder when \( 4^{1012}\) is divided by 7?

A). 1

B). 2

C). 3

D). 4

7). What is the highest common facter of \( 2x^{3}\)+\( x^{2}\)-\( x\)-\( 2\) and \( 3x^{3}\)-\( 2x^{2}\)+\( x\)-\( 2\)?

A). \( x-1\)

B). \( x+1\)

C). \( 2x+1\)

D). \( 2x-1\)

8). What is the remainder when \( \left( 1235 \times 4523 \times 2451\right)\) is divided by 12?

A). 1

B). 3

C). 5

D). 7

9). What is the remainder when \( \left(17^{23} + 23^{23} + 29^{23}\right)\) is divided by 23?

A). 0

B). 1

C). 2

D). 3

10). \( p\),\( q\) and r are prime numbers. Such that p< q

A). 1

B). 2

C). 3

D). None of these