Quantitative Reasoning

Number System

Easy

Find the number which is nearest to 3105 and is exactly divisible by 21.

3107

3108

3106

3109

✅ Correct Option: 2

Dividing $3105$ by $21$ gives quotient $147$ and remainder $18$ . So the neighbouring multiples are $21 \times 147 = 3087$ (a gap of 18) and $21 \times 148 = 3108$ (a gap of 3). The nearest is $3108$ .

2026: 21 May Shift 1

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2023: 15 June Shift 2

Which one of the following numbers is not a prime number?

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If $\sqrt[3]{x} = 2y$ . Then, the value of $\frac{y^3}{x}$ is ______

2025: 2 June Shift 2

The sum of the perfect squares between 150 and 250 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:

2026: 21 May Shift 2

In number system 3√2, is?

Find the number which is nearest to 3105 and is exactly divisible by 21.

Solution

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