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Pankaj Gupta
  • 1
Pankaj GuptaScholar
Asked: 1 year agoIn:
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A clock shows 6:00 AM. How many times will the minute hand and hour hand overlap between 6:00 AM and 12:00 PM?

A clock shows 6:00 AM. How many times will the minute hand and hour hand overlap between 6:00 AM and 12:00 PM?

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clock
  1. Vaishnavi
    Vaishnavi Explorer

    11 times

    11 times

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Pankaj Gupta
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Pankaj GuptaScholar
Asked: 1 year agoIn:
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In a box of apples, there are 6 red apples, 4 green apples, and 2 yellow apples. If a person randomly picks 2 apples from the box, what is the probability that at least one of them is yellow?

In a box of apples, there are 6 red apples, 4 green apples, and 2 yellow apples. If a person randomly picks 2 apples from the box, what is the probability that at least one of them is yellow?

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probability
  1. Priyansh Srivastava
    Priyansh Srivastava Beginner

    sample space : 12C2 = 66 Let E be the event of selection of atleast one apple is yellow Cases for E  : RY + GY + YY = 6C1*2C1 + 4C1*2C1 +2C1*2C1 = 24 P(E) = 24/66 = 4/11 .

    sample space : 12C2 = 66

    Let E be the event of selection of atleast one apple is yellow

    Cases for E  : RY + GY + YY = 6C1*2C1 + 4C1*2C1 +2C1*2C1 = 24

    P(E) = 24/66 = 4/11 .

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Pankaj Gupta
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Pankaj GuptaScholar
Asked: 1 year agoIn:
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There are 3 children in a family: Alice, Bob, and Charlie. Alice is older than Bob, and Bob is older than Charlie. If Alice is also younger than Bob’s mother, how old is Bob’s mother relative to Charlie?

There are 3 children in a family: Alice, Bob, and Charlie. Alice is older than Bob, and Bob is older than Charlie. If Alice is also younger than Bob’s mother, how old is Bob’s mother relative to Charlie?

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reasoning
Pankaj Gupta
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Pankaj GuptaScholar
Asked: 1 year agoIn:
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A man has a garden shaped like a rectangle. He walks along one of the shorter sides at 2 meters per second for 10 seconds, then walks along the longer side at 1 meter per second for 15 seconds. What ...Read more

A man has a garden shaped like a rectangle. He walks along one of the shorter sides at 2 meters per second for 10 seconds, then walks along the longer side at 1 meter per second for 15 seconds. What is the perimeter of the garden?

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mensuration
  1. Priyansh Srivastava
    Priyansh Srivastava Beginner

    PERIMETER = 2(2*10+1*15) = 70 m

    PERIMETER = 2(2*10+1*15) = 70 m

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Pankaj Gupta
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Poll
Pankaj GuptaScholar
Asked: 1 year agoIn:
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Which of the following conclusions can definitely be drawn from the given statements? Statement I: All pencils are erasers.Statement II: Some erasers are markers.

Which of the following conclusions can definitely be drawn from the given statements?

Statement I: All pencils are erasers.
Statement II: Some erasers are markers.

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syllogism
Pankaj Gupta
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Pankaj GuptaScholar
Asked: 1 year agoIn:
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A person has 5 different-colored balls: red, blue, green, yellow, and orange. He places them in a bag, then randomly draws out two balls. What is the probability that he will draw exactly one blue ball?

A person has 5 different-colored balls: red, blue, green, yellow, and orange. He places them in a bag, then randomly draws out two balls. What is the probability that he will draw exactly one blue ball?

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probability
  1. Priyansh Srivastava
    Priyansh Srivastava Beginner

    SS = 5C2 = 10 CASES = RB + GB+ YB+ OB = 4 P(E) =2/5

    SS = 5C2 = 10

    CASES = RB + GB+ YB+ OB = 4

    P(E) =2/5

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Pankaj Gupta
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Pankaj GuptaScholar
Asked: 1 year agoIn:
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Two cars are on the same highway, 100 kilometers apart, heading toward each other at a speed of 50 km/h each. A bird starts at the front of one car and flies towards the other car at a speed of ...Read more

Two cars are on the same highway, 100 kilometers apart, heading toward each other at a speed of 50 km/h each. A bird starts at the front of one car and flies towards the other car at a speed of 75 km/h. Upon reaching the other car, the bird turns around and flies back toward the first car, continuing this pattern until the two cars collide. How many kilometers does the bird travel before the cars meet?

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reasoning
Vaishnavi
  • 1
VaishnaviExplorer
Asked: 1 year agoIn:
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Discuss the role of peer pressure on an adolescent’s personality development

Discuss the role of peer pressure on an adolescent’s personality development

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  1. Arshe Alam
    Arshe Alam Beginner

    A rainbow is caused by sunlight and atmospheric conditions. Light enters a water droplet, slowing down and bending as it goes from air to denser water. The light reflects off the inside of the droplet, separating into its component wavelengths--or colors.

    A rainbow is caused by sunlight and atmospheric conditions. Light enters a water droplet, slowing down and bending as it goes from air to denser water. The light reflects off the inside of the droplet, separating into its component wavelengths–or colors.

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Vaishnavi
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VaishnaviExplorer
Asked: 1 year agoIn:
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What is soil erosion?How does it effect the biosphere?

What is soil erosion?How does it effect the biosphere?

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  1. Pankaj Gupta
    Pankaj Gupta Scholar

    What is Soil Erosion? Soil erosion is the process by which the top layer of soil is removed or displaced by natural forces such as wind, water, ice, or human activities. It involves the wearing away of the fertile, nutrient-rich upper layer of soil, which is essential for plant growth and overall ecRead more

    What is Soil Erosion?

    Soil erosion is the process by which the top layer of soil is removed or displaced by natural forces such as wind, water, ice, or human activities. It involves the wearing away of the fertile, nutrient-rich upper layer of soil, which is essential for plant growth and overall ecosystem health.

    Effects of Soil Erosion on the Biosphere

    Soil erosion significantly impacts the biosphere in various ways:

    EffectDescription
    Loss of Fertile TopsoilThe top layer of soil, rich in nutrients and organic matter, is essential for plant growth. Its loss reduces agricultural productivity and affects plant life.
    Reduction in Agricultural YieldErosion leads to the loss of fertile land, decreasing crop yields and food security.
    Disruption of Aquatic EcosystemsSediments from eroded soil can pollute water bodies, leading to the destruction of aquatic habitats and biodiversity.
    Increased DesertificationContinuous erosion can turn fertile lands into deserts, leading to the expansion of arid regions.
    Climate Change ContributionSoil erosion can release stored carbon from the soil into the atmosphere, contributing to greenhouse gas emissions.
    Loss of BiodiversityErosion leads to habitat destruction, affecting both flora and fauna dependent on stable soil for survival.
    Water Cycle DisruptionSoil erosion affects the water retention capacity of land, leading to altered water cycles and increased runoff.
    Economic ImpactIt causes economic losses in agriculture, forestry, and infrastructure due to decreased land productivity and increased maintenance costs.

    By diminishing the quality of soil and degrading ecosystems, soil erosion poses a significant threat to the sustainability of the biosphere, impacting all living organisms that depend on the land for survival.

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