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.

Explanation

One-tenth of six is equal to 6 ÷ 10 = 0.6.

The correct answer is: 0.6.

Explanation

1 hour = 60 minutes

1 hour = 3600 seconds

1/3600 = 0.00027

Explanation

ريل جي ھڪ گاڏي ۾ 60، ريل جي ٻئي گاڏي ۾ 65، ريل جي ٽئين گاڏي ۾ 71 ۽ ريل جي چوٿين گاڏي ۾ 72 مسافر آھن. ٻڌايو تہ پوءِ ريل جي سڀني گاڏن ۾ مسافرن جو ڪل تعداد 268 آھي

Explanation

پکين جو نظارو ڪندڙن جي ڪلب لکيا تہ پکي سندس ميمبرن جنوري ۾ (3785)، فيبروري ۾ (3389)، مارچ ۾ (3385) ۽ ڊسمبر ۾ (3758) ڏٺا. مارچ مھيني ۾ ڪلب سڀ کان گهٽ پکي ڏٺا