Explanation

1. One-third of the goods are sold at a 10% profit, so the profit from this portion is:

(1/3) x 10% = 3.33%

2. Another one-third of the goods are sold at a 20% profit, so the profit from this portion is:

(1/3) x 20% = 6.67%

3. The rest (1/3) of the goods are sold at a 6% loss, so the loss from this portion is:

(1/3) x (-6%) = -2%

4. Add up the profits and losses to find the overall profit percentage:

3.33% + 6.67% - 2% = 8%

So, the shopkeeper's overall profit percentage is 8%.

Explanation

The expression "6n + 5" alone does not provide enough information to determine a specific value for "n."

Explanation

A picosecond is equal to one trillionth of a second.

In scientific notation, it is 1×10 −12  seconds.

Explanation

Explanation

Explanation

2a - 2 = 20

Add 2 to both sides:

2a = 22

Divide both sides by 2:

a = 11

Explanation

Explanation

Explanation

To evaluate this expression, we need to follow the order of operations (PEMDAS):

1. Calculate the square roots:

√10 ≈ 3.162

√250 = √(25 × 10) = 5√10 ≈ 5 × 3.162 = 15.811

2. Multiply the square roots:

3.162 × 15.811 ≈ 50.00

Explanation