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

Explanation

اُھا ڪُنڊ جنهن جي ماپ °90 ڊگري کان وڌيڪ آهي. ان کي نوي (°90) ڊگري ۽ ھڪ سؤ اسي (°180) ڊگري جي وچ واري ڪُنڊ چئبو آھي

Explanation

وڌيڪ/گھڻا ھاري کي گھٽ وقت لڳندو ڪم مڪمل ڪرڻ لاءِ متضاد/اُبتڙ تناسب آھي

Explanation

To find the ratio of 25 minutes to 80 minutes, we can divide 25 by 80:

25 ÷ 80 = 5/16

So, the ratio of 25 minutes to 80 minutes is 5:16.

Explanation

If 8 workers can do a job in 6 hours, it means that the total work required to complete the job is 8 x 6 = 48 man-hours.

If 12 workers are assigned to do the same job, the total work required remains the same, but the number of workers has increased. To find the time it will take 12 workers to do the same job, we can divide the total work by the number of workers:

48 man-hours ÷ 12 workers = 4 hours

Therefore, the correct answer is: Four hours.