Explanation

Let Latif's age be 7x and Saleem's age be 9x.

Since Latif is younger than Saleem by 7 years:

9x - 7x = 7

2x = 7

x = 7/2

x = 3.5

Now, Latif's age = 7x = 7(3.5) = 24.5

Explanation

Total percent increase=Initial populationFinal population−Initial population​×100

Increased in 10 years =262,500 − 175,000 =87,500

Increase% = 87,500 / 175,000×100 =50

Average percent increase=Number of yearsTotal percent increase​

One year percentage = 50 x 10/100 = 5%

Explanation

Work done by P in 1 day = 1/15
Work done by Q in 1 day = 1/10
Work done by P and Q in 1 day = 1/15 + 1/10 = 1/6
Work done by P and Q in 2 days = 2 × (1/6) = 1/3
Remaining work = 1 – 1/3 = 2/3
Time taken by P to complete the remaining work 2/3 = (2/3) / (1/15) = 10 days
Total time taken = 2 + 10 = 12 days

Explanation

Let Maryum's current age be x.

Ten years ago, Maryum's age was x - 10.

After one year, Maryum's age will be x + 1.

According to the problem, after one year, Maryum's age will be two times her age ten years ago:

x + 1 = 2(x - 10)

Now, simplify the equation:

x + 1 = 2x - 20

Add 20 to both sides:

x + 21 = 2x

Subtract x from both sides:

21 = x

So, Maryum's current age is 21.

Explanation

Explanation

We are given:

• Each pill contains = 0.2 grams of medicine
• Total available medicine = 1 kilogram = 1000 grams

Step 1: Calculate the Number of Pills

Number of pills= Total medicine/Medicine per pill​

=1000/0.2​

=1000×10​/2=5000

Explanation

Explanation

Because you aren't given the cost of any book, you can plug in your own values.

Let's say that the average cost of the textbooks, excluding the anatomy textbook, is $10.

You can make all the books cost $10 each to make the problem easier.

The anatomy textbook would cost $30.

The total cost of all the textbooks would be $130.

The anatomy textbook would be $30/$130=3/13

Explanation

Explanation

• Total of 5 numbers: $$5x 6.9 = 34.5
  
• Total of 4 numbers:4×4.4=17.6
• Deleted number: $$34.5 - 17.6 = 16.9