Others Maths Puzzle

A ball rebounds to 4/5th of the
height from which it has fallen.
Find the total distance that it
travels before coming to rest if
dropped from 120metres

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Others Other Question
Study the following information and answer the questions given below:
A + B means A is daughter of B
A – B means A is the husband of B
A * B means A is the brother of B
A / B means A is the mother of B

1. If R * M + N – L / P is true, then which of the following the following statements is true
1. P is the brother of M
2. P is the sister of M
3. P and R are brothers
4. M, R and P are siblings

2. Which of the following represents P is the daughter-in-law of M
1. L / M * K – P + R
2. L – M / K * R – P
3. M * N – R / P + L
4. M + N – R * P / L

3. Which of the following symbols should replace the question mark (?) in order to make L is the niece of R definitely true
J – L ? P * R / S Gaurav walks 20 meters towards North. He then turns left and walks 40 meters.

He again turns left and walks 20 meters. Futher he moves 20 meters after turning to

the right. How far is he from his original position?

A. 20 meters B. 30 meters C. 50 meters D. 60 meters