A group of students are learning about ancient number systems.
Their teacher gives them a task to perform simple calculations using Egyptian, Roman, and Mayan numerals.
1. Ravi tries to add \(\text{XXX + IV}\) using Roman numerals.
2. Meena writes a large number using Egyptian symbols and struggles to simplify it.
3. Arjun attempts multiplication using Egyptian doubling methods.
4. Latha works with Mayan numerals but finds it confusing due to a different base system.
(i) While adding \(\text{XXX + IV}\), Ravi converts them into decimal numbers first.
What is the correct final answer in Roman numerals?
(ii) Meena writes the number 18 in Egyptian numerals using symbols. Which of the following is correct?
(iii) Arjun multiplies \(\text{17 × 5}\) \(= 85\) and gives the answer in Egyptian number system. Which of the following gives the correct result?
(iv) Latha converts a number from decimal to Mayan system. What is the representation of 47 in Mayan number system?