High School

1. A shopkeeper can put 14 clothes in a bag. How many clothes can she put in 21 such bags?

2. A teacher has 14 packets of color pencils, with 25 pencils in each packet. She also has 9 packets of regular pencils, with 12 pencils in each packet. How many pencils does she have altogether?

3. Peter has 24 cows. Each cow eats 2 kilograms of grass twice a day. How much grass does he need to feed all of his cows in a day?

4. School A has 23 classrooms, with 35 students in each classroom. School B has 35 classrooms with 24 students in each classroom. How many more students are there in School B than in School A?

5. Ramu runs 650 meters each day of the week, and Shyamu runs 800 meters on 4 days in a week. How much do they run altogether in one whole week?

6. Kiran scored 450 points in a video game each day for 6 days. Mira scored 567 points in a video game each day for 4 days. What were the total points scored by them in all?

Answer :

Let's solve each question step-by-step:

  1. Clothes in Bags:
    The shopkeeper can put 14 clothes in one bag. To find out how many clothes can be put in 21 bags, we multiply:
    [tex]14 \text{ clothes/bag} \times 21 \text{ bags} = 294 \text{ clothes}[/tex]
    So, the shopkeeper can put 294 clothes in 21 bags.

  2. Total Pencils:
    First, calculate the number of color pencils:
    [tex]14 \text{ packets} \times 25 \text{ pencils/packet} = 350 \text{ color pencils}[/tex]
    Then, calculate the number of regular pencils:
    [tex]9 \text{ packets} \times 12 \text{ pencils/packet} = 108 \text{ regular pencils}[/tex]
    To find the total, add the color pencils and regular pencils:
    [tex]350 + 108 = 458 \text{ pencils}[/tex]
    Hence, the teacher has 458 pencils altogether.

  3. Grass for Cows:
    Each cow eats 2 kilograms of grass twice a day, which totals to 4 kilograms per cow each day. For 24 cows:
    [tex]24 \text{ cows} \times 4 \text{ kg/cow/day} = 96 \text{ kg}[/tex]
    Peter needs 96 kilograms of grass to feed all his cows in one day.

  4. Students in Schools:
    Calculate the number of students in School A:
    [tex]23 \text{ classrooms} \times 35 \text{ students/classroom} = 805 \text{ students}[/tex]
    Calculate the number of students in School B:
    [tex]35 \text{ classrooms} \times 24 \text{ students/classroom} = 840 \text{ students}[/tex]
    To find out how many more students there are in School B:
    [tex]840 - 805 = 35 \text{ more students}[/tex]
    School B has 35 more students than School A.

  5. Running Distances:
    First, determine how much Ramu runs in a week:
    [tex]650 \text{ metres/day} \times 7 \text{ days} = 4550 \text{ metres}[/tex]
    Then, calculate how much Shyamu runs in a week:
    [tex]800 \text{ metres/day} \times 4 \text{ days} = 3200 \text{ metres}[/tex]
    Combine the distances for both Ramu and Shyamu:
    [tex]4550 + 3200 = 7750 \text{ metres}[/tex]
    Together, they run 7750 metres in one week.

  6. Total Points Scored:
    Calculate Kiran's total score:
    [tex]450 \text{ points/day} \times 6 \text{ days} = 2700 \text{ points}[/tex]
    Calculate Mira's total score:
    [tex]567 \text{ points/day} \times 4 \text{ days} = 2268 \text{ points}[/tex]
    Add Kiran's and Mira's points together:
    [tex]2700 + 2268 = 4968 \text{ points}[/tex]
    Altogether, they scored 4968 points.