High School

We appreciate your visit to 1 What comes next in the pattern 2 4 8 16 a 20 b 24 c 32 d 18 2 If 5 pencils cost Rs. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!

1. What comes next in the pattern?
2, 4, 8, 16, __
(a) 20
(b) 24
(c) 32
(d) 18

2. If 5 pencils cost Rs. 25, how much do 8 pencils cost?
(a) Rs. 30
(b) Rs. 35
(c) Rs. 40
(d) Rs. 45

3. Which number is the odd one out?
11, 13, 17, 19, 21, 23
(a) 13
(b) 19
(c) 21
(d) 23

4. If it takes 3 people 3 hours to paint a wall, how long will 6 people take to paint the same wall?
(a) 1 hour
(b) 1.5 hours
(c) 2 hours
(d) 3 hours

5. Find the missing number:
7, 14, __, 56, 112
(a) 21
(b) 24
(c) 28
(d) 35

6. What is the angle of a straight line?
(a) 45°
(b) 90°
(c) 180°
(d) 360°

7. The clock shows 3:15. What is the angle between the hour and the minute hand?
(a) 0°
(b) 7.5°
(c) 30°
(d) 45°

8. If 'EARTH' is coded as 'GDUWK', how is 'MOON' coded in the same way?
(a) PRRQ
(b) QPPO
(c) OPPQ
(d) RRRQ

9. If the sum of three consecutive odd numbers is 51, what are the numbers?
(a) 15, 17, 19
(b) 17, 19, 21
(c) 19, 21, 23
(d) 21, 23, 25

10. A train travels 120 km in 2 hours. At the same speed, how far will it travel in 5 hours?
(a) 200 km
(b) 250 km
(c) 300 km
(d) 280 km

Answer :

  1. Look for the Pattern: The sequence given is 2, 4, 8, 16.

    Each number is obtained by multiplying the previous number by 2. So, the next number after 16 should be:
    [tex]16 \times 2 = 32[/tex]

    Therefore, the correct answer is (c) 32.

  2. Calculate the Cost of Pencils:

    The cost of 5 pencils is Rs. 25. Let's find the cost for 8 pencils. The cost per pencil is calculated as:
    [tex]\text{Cost per pencil} = \frac{25}{5} = \text{Rs. 5}[/tex]

    For 8 pencils, the cost would be:
    [tex]8 \times 5 = \text{Rs. 40}[/tex]

    Hence, the correct answer is (c) Rs. 40.

  3. Find the Odd Number:

    The numbers given are 11, 13, 17, 19, 21, 23. These are mostly prime numbers except 21.

    21 is the only even number and not a prime number, so the correct answer is (c) 21.

  4. Calculate the Time Taken:

    If 3 people take 3 hours to paint a wall, then the work-rate is 1 wall per 9 person-hours.

    Doubling the number of people to 6 will halve the time required:
    [tex]\frac{3 \times 3}{6} = 1.5 \text{ hours}[/tex]

    Thus, the correct answer is (b) 1.5 hours.

  5. Find the Missing Number:

    The pattern is increasing by a factor of 2: 7, 14, then 28.

    Therefore, the next number should be:
    [tex]14 \times 2 = 28[/tex]

    Thus, the correct answer is (c) 28.

  6. Angle of a Straight Line:

    A straight line always forms a 180° angle.

    Thus, the correct answer is (c) 180°.

  7. Find the Clock Angle:

    When the time is 3:15, the minute hand is on 3 (15 minutes), and the hour hand is a quarter of the way between 3 and 4.

    The angle between each hour is 30°, so the angle is:
    [tex]30° + 7.5° = 30° + 0.5 \times 30° = 7.5°[/tex]

    Thus, the correct answer is (b) 7.5°.

  8. Decoding the Code:

    The code EARTH is transformed into GDUWK. Each letter is shifted forward by 3 letters in the alphabet.

    By shifting each letter in MOON similarly:
    M -> P, O -> R, O -> R, N -> Q

    Therefore, MOON is coded as PRRQ, making the correct answer (a) PRRQ.

  9. Find the Consecutive Odd Numbers:

    Let the numbers be [tex]x - 2, x, x + 2[/tex].

    Adding them gives the equation: [tex](x - 2) + x + (x + 2) = 51[/tex]
    Simplifying, we get:
    [tex]3x = 51 \Rightarrow x = 17[/tex]

    Therefore, the numbers are 15, 17, 19, making the correct answer (a) 15, 17, 19.

  10. Calculate the Train's Travel Distance:

The speed of the train is [tex]\frac{120 \, \text{km}}{2 \, \text{hours}} = 60 \, \text{km/h}[/tex].

For 5 hours, the train will travel:
[tex]60 \, \text{km/h} \times 5 \, \text{hours} = 300 \, \text{km}[/tex]

Thus, the correct answer is (c) 300 km.

Thanks for taking the time to read 1 What comes next in the pattern 2 4 8 16 a 20 b 24 c 32 d 18 2 If 5 pencils cost Rs. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!

Rewritten by : Barada