Nobita, Zian and Suzuko are playing a game. Nobita climbs 5 stairs and gets down 2 stairs in one
turn. Zian goes up by 7 stairs and comes down by 2 stairs every time. Suzuko goes 10 stairs up
and 3 stairs down each time. Doing this they have to reach to the nearest point of 100 stairs
and they will stop once they find it impossible to go forward. They have less number of stairs
than required forward stairs)
1 )Who reaches the nearest point?
(a) Nobita
(b) Zian
(c) Suzuko
(d) All together reach to the nearest point.
2)How many times can they meet in between on same step?
3)What is the first stair where any two out of three will meet together?
4)Who takes least number of steps to reach near hundred?
(a) Nobita
(b) Zian
(c) Suzuko
(d) All of them take equal number of steps.
Answers
Answer:
the answer is Nobita.nobita reach to the nearest point
Answer:
1. From the given options, the correct option is (A) Nobita.
Explanation: After reaching 93 steps, Nobita will take 5 steps up and 2 steps down, totaling 96 steps. He will not cover any further steps because the 100th step is the final one. Zian will only cover the first 95 steps because the 100th step is the final one. Suzuko will only go up to 91 steps because the 100th step is the final one and she will not go any further.
2. From the given options, the correct option is : No, they cannot meet in between on same step.
Explanation: Because LCM (3, 5, 7) =105 step. Since the total number of steps is only 100.
3. From the given options, the correct option is : Nobita and Zian will finally meet after 15 steps.
Explanation: Since LCM(3,5)=15; LCM(5,7)=35; LCM(3,7)=21. Because 15 is the smallest number, Nobita and Zian will meet for the first time after 15 steps.
4. From the given options, the correct option is : (c) Suzuko
Explanation: Suzuko will take the fewest steps possible.
Nobita will take 32 steps, Zian will take 19 steps, and Suzuko will take 13 steps to reach 96, 95, and 91 steps, respectively.
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