Quantitative Reasoning

Number System

Easy

Which of the following lists of numbers is/are an Arithmetic Progression?

(A) 2, 8, 14, 20,........

(B) 0, 4, 8, 12,........

(C) 6, 12, 18, 24,........

(D) 21, 17,15,........

Choose the correct answer from the options given below:

(A), (B) and (C) only

(A), (B) and (D) only

(B), (C) and (D) only

(A), (B), (C) and (D)

✅ Correct Option: 1

An AP needs a constant common difference.

(A) $d=6$ throughout.

(B) $d=4$ throughout.

(D) differences are $-4$ then $-2$ , which is not constant.

So only (A), (B) and (C) are APs.

2022: 26 Aug Shift 1

Let A be the greatest number that will divide 505, 555 and 605, leaving the same remainder in each case. Then sum of the digits in a is:

2022: 6 Aug Shift 1

The LCM and HCF of two numbers are 35 and 15 respectively. The product of these numbers is ________.

2026: 22 May Shift 2

Match List-I with List-II

List-I (Statements/Expressions etc.)	List-II (Values, etc.)
(A) Find the sum of the first 20 odd natural numbers.	(I) 285
(B) How many prime numbers are there between 100 and 200?	(II) 0
(C) Find the sum of the squares of the digits from 1 to 9.	(III) 400
(D) Find the unit's digit in the product $81 \times 82 \times 83 \times ... ... ... \times 89$ ?	(IV) 21

Choose the correct answer from the options given below:

2022: 6 Oct Shift 1

Find the value of $(25)^3 + (-29)^3 + (4)^3$

2022: 20 Aug Shift 1

Find the smallest among the following ?

$\sqrt[4]{6}, \sqrt{2}, \sqrt[3]{4}$ and $\sqrt{3}$

2026: 29 May Shift 2

Find the sum of the first n positive integers.

Solution