Friday 24 August 2018

In a school total 500 students study there? Out of that, 26.8 % have taken maths, 26% have taken physics and 22% have taken chemistry. 6% of total students have taken both Physics and Chemistry but not in maths and 60% of this numbers have taken maths and Chemistry but not physics. 4.4 % students have taken all three subjects and 8.4% students have taken maths and physics but not chemistry.

1. How many students have taken physics only?

2. How many students have taken only one subject?

3. What percentage of students have taken chemistry only?

4. The number of students who took all three subjects is what percentage of the number of students who have taken maths only?

5. The number of students who took at least two subjects is approximately what percentage of the number of students who took at most two subjects?





Answer:-1. 36    2. 128   3. 8%   4. 42.3%    5. 56%

More Post

Latest Current Affaris

Current affairs 05/06/2019
Current affairs 05/06/2019

1). Comptroller and auditor general Rajiv Mehrishi has been appointed as the external auditors of World Health Organisation (WHO) for a four year term from 2020-23. 2).World Environment Day is observed on 5 June(Theme: The Air Pollution). 3). Madhya Pradesh cabinet has passed a resolution to increase reservation of OBC's 27%.

करंट अफेयर्स 03-04/06/2019
करंट अफेयर्स 03-04/06/2019

1. नयब बुकेले को ईआई सल्वाडोर के राष्ट्रपति के रूप में चुना गया है। (ईआई सल्वाडोर की राजधानी: सैन सल्वाडोर, मुद्रा: संयुक्त राज्य अमेरिका डॉलर) 2. राष्ट्रीय सुरक्षा सलाहकार (NSA) अजीत डोभाल की दोबारा अपने पद पर नियुक्ति हुई। NDA सरकार के दूसरे कार्यकाल में उन्हें कैबिनेट रैंक दिया गया है। 3. 3 जून को विश्व साइकिल दिवस मनाया जाता है।

Current affairs 03-04/06/2019
Current affairs 03-04/06/2019

1. Nyaib Bukele has been Sworn in as the president of  EI Salvador ( EI Salvador's capital: San Salvador, currency: United States Dollar). 2. National Security Advisor (NSA) Ajit Doval reappointed to his post and given Cabinet rank in the second term of the NDA government. 3. World Bicycle Day is observed on 3rd June .