Consider the following statements
(A) 141 is a prime number.
(B) 2984234 is divisible by 11
(C) 39552 is divisible by 18.
(D) The sum of the face values of 3 and 5 in 36251 is 8.
Choose the correct answer from the options given below:
Consider the following statements
(A) 141 is a prime number.
(B) 2984234 is divisible by 11
(C) 39552 is divisible by 18.
(D) The sum of the face values of 3 and 5 in 36251 is 8.
Choose the correct answer from the options given below:
Solution
Consider the following statements:
(A) 141 is a prime number.
(B) 2984234 is divisible by 11.
(C) 39552 is divisible by 18.
(D) The sum of the face values of 3 and 5 in 36251 is 8.
Statement (A): 141 is a prime number
A prime number has only two divisors: 1 and itself.
Checking divisibility by 3:
Sum of digits = 1 + 4 + 1 = 6
Since 6 is divisible by 3, 141 is divisible by 3.
141 ÷ 3 = 47
Therefore 141 = 3 × 47
Statement (A) is FALSE.
Statement (B): 2984234 is divisible by 11
Divisibility rule for 11: Alternate sum of digits (from right to left) must be 0 or divisible by 11.
4 - 3 + 2 - 4 + 8 - 9 + 2 = 0
Since the result is 0, the number is divisible by 11.
Statement (B) is TRUE.
Statement (C): 39552 is divisible by 18
For divisibility by 18, the number must be divisible by both 2 and 9.
Divisibility by 2:
Last digit is 2 (even), so divisible by 2.
Divisibility by 9:
Sum of digits = 3 + 9 + 5 + 5 + 2 = 24
24 is not divisible by 9.
Since the number is not divisible by 9, it is not divisible by 18.
Statement (C) is FALSE.
Statement (D): The sum of face values of 3 and 5 in 36251 is 8
Face value is the digit itself.
In 36251:
Face value of 3 = 3
Face value of 5 = 5
Sum = 3 + 5 = 8
Statement (D) is TRUE.
Only statements (B) and (D) are correct.
The correct answer is Option 1: (B) and (D) only.
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