Advertisements
Advertisements
प्रश्न
Water level in a well was 20 m below ground level. During rainy season, rain water collected in different water tanks was drained into the well and the water level rises 5 m above the previous level. The wall of the well is 1 m 20 cm high and a pulley is fixed at a height of 80 cm. Raghu wants to draw water from the well. The minimum length of the rope that he can use is ______.
पर्याय
17 m
18 m
96 m
97 m
Advertisements
उत्तर
Water level in a well was 20 m below ground level. During rainy season, rain water collected in different water tanks was drained into the well and the water level rises 5 m above the previous level. The wall of the well is 1 m 20 cm high and a pulley is fixed at a height of 80 cm. Raghu wants to draw water from the well. The minimum length of the rope that he can use is 17 m.
Explanation:
Height of the wall of the well = 1 m 20 cm = 1.20 m
Height of the pulley = 80 cm = 0.80 m
∴ Required minimum length of the rope
= (20 – 5 + 1.20 + 0.80) m
= (15 + 2) m
= 17 m
APPEARS IN
संबंधित प्रश्न
State, true or false of the given statement:
product of two integers can be zero.
State, true or false of the given statement:
(b – c) × a=b – c × a
Classify the following numbers as positive numbers and negative numbers.
–5, +4, –2, 7, +26, –49, –37, 19, –25, +8, 5, –4, –12, 27
Find the sum of: −389 and −1032
Subtract: −135 from −250
The sum of two integers is 65. If one of the integers is −47, find the other.
Multiply: –18 by 13
Find the product: (−8) × (−3) × (−9)
2 less than −3 is
From given integers in Column I match an integer of Column II so that their product lies between –19 and –6:
| Column I | Column II |
| –5 | 1 |
| 6 | –1 |
| –7 | 3 |
| 8 | –2 |
