Explanation

Let's examine the pattern of the given series: 2880, 480, 92, 24, 8, 4, 4.

Start by checking the relationship between consecutive numbers:

• 2880 ÷ 6 = 480
• 480 ÷ 5 = 96 (but the next number is 92, so this is where the error occurs)
• 92 ÷ 4 = 24
• 24 ÷ 3 = 8
• 8 ÷ 2 = 4
• 4 ÷ 1 = 4

The wrong number is 92.

It should be 96 for the series to follow a decreasing division pattern.

Explanation

√6 × √6 = √(6 × 6) (using the property of square roots)

= √36

= 6 (since 6^2 = 36)

Explanation

Using the order of operations (PEMDAS), we get:

Evaluate the expression inside the parentheses:

• 2 × 5 = 10
• 13 - 10 = 3

Now, multiply 12 by the result:

• 12 × 3 = 36

So, the correct answer is 36.

Explanation

1*5 = 5

5*4 = 20

20*3 = 60

60*2 = 120

120*1 = 120

Explanation

To find the new time required to complete the task, divide the original time by the number of workers:

25 hours ÷ 5 workers = 5 hours

So, if 4 people with the same efficiency join you, it will take 5 hours to clean the garden.

Explanation

To find the positive square root of 2209, we can use a calculator or factor the number.

The positive square root of 2209 is:

√2209 = 47

Since 47 × 47 = 2209.

Explanation

 Convert speed to meters per second:

60 km/h=  60×1000/60×60

 =16.67 m/s

Use the formula:

Distance=Speed×Time

Length of Train

Length of Train=16.67×9=150 m

Explanation

1 divided by 1000 equals 0.001, which is the decimal representation of the fraction.

Explanation

Length = 6m

Width = 5m

Height = 5m

Volume = L*W*H

=6*5*4

=120

Explanation

First, find the difference in weight:

160 - 152 = 8 pounds

Then, divide the difference by the original weight:

8 ÷ 160 = 0.05

Convert the decimal to a percentage:

0.05 × 100% = 5%

So, the athlete's weight decreased by 5%.