Explanation

ڪار جي ڊيگھ معلوم ڪرڻ لاء ميٽرس درست ماپ آھي

Explanation

چئن پاسن واري بند شڪل چورس چئبو آهي

Explanation

First, calculate the total cost of the books:

3 books x Rs 16 = Rs 48

4 books x Rs 23 = Rs 92

Total cost = Rs 48 + Rs 92 = Rs 140

Next, calculate the total number of books: 3 + 4 = 7 books

Now, divide the total cost by the total number of books to find the average price: Rs 140 ÷ 7 = Rs 20

The correct answer is: 20.

Explanation

Let's break this down step by step:

The average age of seven members is 75 years, so the total age of all seven members is: 7 x 75 = 525 years

The average age of six members is 74 years and 6 months, which is equivalent to:

74.5 years (since 6 months is half a year)

So, the total age of these six members is: 6 x 74.5 = 447 years

Now, subtract the total age of the six members from the total age of all seven members to find the age of the seventh member: 525 - 447 = 78 years

The correct answer is: 78.

Explanation

7 + 14 + 21 + 28 + 35 + 42 + 49/7

= 196/7 = 28

So the correct answer is 28.

Explanation

First, find 45% of 280: 280 x 0.45 = 126

Next, find 28% of 450: 450 x 0.28 = 126

Add the results: 126 + 126 = 252

The correct answer is: 252.

Explanation

To find 15% of 34, multiply 34 by 0.15 (which is the same as 15%).

34 × 0.15 = 5.1

The correct answer is: 5.1.

Explanation

Two point zero nine (2.09) per hundred can be written as a percentage by moving the decimal point two places to the right:

2.09 ÷ 100 = 0.0209

0.0209 × 100 = 2.09%

So, the correct answer is: 2.09%.

Explanation

First, calculate the number of students who passed the exam:

180 (students who appeared) x 70% (pass rate) = 126 students

Since 180 students appeared, the number of students who failed is:

180 - 126 = 54 students

The correct answer is: 54.

Explanation

One hundredth part of a number means dividing the number by 100.

So, one hundredth part of 52 is:

52 ÷ 100 = 0.52

The correct answer is: 0.52.