Quantitative Reasoning

Number System

Medium

Which one of the following statements is/are true?

A. 48713280 is divisible by 11

B. 59761543 is not divisible by 3

C. 342221319 is divisible by 99

D. 10050432 is not divisible by 8

Choose the correct answer from the options given below:

A, B and C only

A, B and D only

A, B, C D

B, C and D only

✅ Correct Option: 1

A: alternating digit sum of 48713280 is $-11$ , so it is divisible by 11.

B: digit sum $=40$ , not a multiple of 3, so the statement holds.

C: digit sum of 342221319 is 27 (divisible by 9) and its alternating sum is 11, so it is divisible by 99.

D: last three digits 432 give $432\div8=54$ , so it is divisible by 8 and D is false. Hence A, B, C.

2022: 23 Aug Shift 1

The value of $\sqrt{.01} \times \sqrt[3]{.027} - 0.3$ is

2022: 8 Aug Shift 1

Distance of A to B is

2025: 15 May Shift 1

Which of the following is/are prime numbers?

(A) 241

(B) 337

(D) 571

Choose the correct answer from the options given below:

2025: 22 May Shift 2

Match List-I with List-II

List-I	List-II
(A) The least number that must be subtracted from 2025 to get a number exactly divisible by 17	(I) 5
(B) The least number that must be added to $1057^5$ to get a number exactly divisible by 23.	(II) 2
(C) Unit digit of $6^{15} - 7^4$	(III) 0
(D) The product of any number and the 1st whole number is:	(IV) 1

Choose the correct answer from the options given below:

2025: 20 May Shift 2

The remainder when $(15^{23} + 23^{23})$ is divided by 19, is:

2023: 15 June Shift 2

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

Solution