Question

MATHEMATIC
13. The smallest 4-digit number having three different digits is
(A) 1102 (B) 1012 (C) 1020 (D) 1002
14. Number of whole numbers betwen 38 and 68 is
(A) 31 (B) 30 ves 29 (D) 28
15. The product of successor and predecessor of 999 is
(A) 999000 (B) 998000 CET 989000 (D) 1998
16. The product of a non-zero whole number and its successor is always
(A) an even number
(B) an odd number
(C) a prime number
(D) divisible by 3
5
17. A whole number is added to 25 and the same number is subtracted
from 25. The sum of the resulting numbers is
(A) 0 (B) 25 (C) 50 (D) 75​

Answer 1

Step-by-step explanation:

13. (D). 1002.

14. (B). 30 ves 29.

15. (B). 998000.

16. (C). even number.

17. (B). 25.

Answer 2

Bonjour frnd !!

Answer with explanation :-

13. (D) Because 1002 has 3 different digits i.e. 1, 2, 0. and is smallest.

14.(B) Because we count upper limit and not lower limit .

Shortcut : 68- 38 =30

15.(B) Because 998 × 1000 =998000

16.(A) Because either the number or its successor has to be even ; Thus, odd × even = even only.

17.(C) Because we have [x +25] + [ 25 - x] = 25+25 = 50.

Please mark as Brainliest .

Hope it helps !!