Question

Subject - Maths
1) Choose the correct option
1) Which of the following roman numerals is correct?
a) XC
b) XD
2) How many times does the digit 9 occur between 1 to 100.
a) 18
b) 20
3) Which of the symbols are never repeated?
a) V, X and C b) V, Land D
4) Which of the following is a prime number?
a) 87
b) 97​

Answer 1

Answer:

See In Explaination

Step-by-step explanation:

1. a) XC

• XC Stands for 90 in Roman Number

2. b) 20

• Between 1 and 100, the digit 9 occurs in 9, 19, 29, 39, 49, 59, 69, 79, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98 and 99. ∴ The digit occurs 20 times between 1 and 100

3. b) V, L and D are never Repeated

4. b) 97

• 97 is only divisible by 1 and Itself so prime.

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Answer 2

Answer:

1) XC

2) 20

3) V, L and D

4) 97

Hope these answers will help you