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6. Water tank has steps inside …

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6. Water tank has steps inside it. A monkey is sitting on the topmost step (i.e. the first step). The water level is at the ninth step. (i) He jumps 3 steps down and then jumps back 2 steps up. In how many jumps will he reach the water level? (ii) After drinking water, he wants to go back. For this, he jumps 4 steps up and then jumps back 2 steps down in every move. In how many jumps will he reach back the top step? (iii) If the number of steps moved down is represented by negative integers and the number of steps moved up by positive integers, represent his moves in part (i) and (ii) by completing the following; (a) – 3 + 2 – ... = – 8 (b) 4 – 2 + ... = 8. In (a) the sum (– 8) represents going down by eight steps. So, what will the sum 8 in (b) represent?

    • Posted by 127 Tekuula Sreeja 4 years, 4 months ago

    CBSE > Class 07 > Mathematics
    • 3 answers

    Ravneet Kaur 4 years, 3 months ago

    In this question, the number of steps going up and down are known for both the cases. Monkey will reach ninth step in 11 jumps. The monkey will reach back the top step after 5 jumps. iii) Moves in part (i): - 3 + 2 - 3 + 2 - 3 + 2 - 3 + 2 - 3 + 2 – 3 = -8 which represents the monkey going down by 8 steps.

    0Thank You

    Ravneet Kaur 4 years, 3 months ago

    Water tank has steps inside it. A monkey is sitting on the topmost step (i.e. the first step). The water level is at the ninth step. (i) He jumps 3 steps down and then jumps back 2 steps up. In how many jumps will he reach the water level? (ii) After drinking water, he wants to go back. For this, he jumps 4 steps up and then jumps back 2 steps down in every move. In how many jumps will he reach back the top step? (iii) If the number of steps moved down is represented by negative integers and the number of steps moved up by positive integers, represent his moves in part (i) and (ii) by completing the following; (a) – 3 + 2 – ... = – 8 (b) 4 – 2 + ... = 8. In (a) the sum (– 8) represents going down by eight steps. So, what will the sum 8 in (b) represent?

    0Thank You

    Ravneet Kaur 4 years, 3 months ago

    The answer is

    0Thank You

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