Maths

Practice Maths questions from all topics in Hindi and English for competitive exams. Including Arithmetic, Algebra, Geometry, Mensuration, and Data Interpretation. Free Quantitative Aptitude MCQs for SSC, Banking, Railways, UPSC & State Exams with instant answers and solutions.

A number is increased by 30% and then decreased by 10%.

A number is increased by 30% and then decreased by 10%. What is the net percentage change in the number? एक संख्या में 30% की वृद्धि की जाती है और फिर 10% की कमी की जाती है। संख्या में शुद्ध प्रतिशत परिवर्तन क्या होगा?

A number is increased by 30% and then decreased by 10%. Read More »

A number is increased by 20% and then decreased by 20%. What is the net percentage change in the number?

A number is increased by 20% and then decreased by 20%. What is the net percentage change in the number? एक संख्या में 20% की वृद्धि की जाती है और फिर 20% की कमी की जाती है। संख्या में शुद्ध प्रतिशत परिवर्तन क्या होगा?

A number is increased by 20% and then decreased by 20%. What is the net percentage change in the number? Read More »

The average of 6 numbers is 24. If one number is excluded, the average of the remaining 5 numbers becomes 22.

The average of 6 numbers is 24. If one number is excluded, the average of the remaining 5 numbers becomes 22. What is the excluded number? 6 संख्याओं का औसत 24 है। यदि एक संख्या को हटा दिया जाए, तो शेष 5 संख्याओं का औसत 22 हो जाता है। हटाई गई संख्या क्या है?

The average of 6 numbers is 24. If one number is excluded, the average of the remaining 5 numbers becomes 22. Read More »

The average of 35 consecutive natural numbers is N. If the first…

The average of 35 consecutive natural numbers is N. If the first 10 numbers are removed, and the next 10 numbers are included, then this average becomes M. If M² − N² = 600, then what will be the average of 3M and 5N? 35 क्रमागत प्राकृतिक संख्याओं का औसत N है। यदि पहली 10

The average of 35 consecutive natural numbers is N. If the first… Read More »

In a school, \(\frac {1}{10}\) of the number of boys is equal to \(\frac {1}{4}\)

In a school, \(\frac {1}{10}\)  of the number of boys is equal to \(\frac {1}{4}\) of the number of girls. Also, \(\frac {5}{8}\) of the number of girls is equal to \(\frac {1}{4}\) of the number of boys. What is the ratio of boys to girls in that school? एक स्कूल में लड़कों की संख्या का

In a school, \(\frac {1}{10}\) of the number of boys is equal to \(\frac {1}{4}\) Read More »

If water consumption is reduced by 20% due to an increase in…

If water consumption is reduced by 20% due to an increase in water tax by 20%, then what will be the percentage increase/decrease in the total tax? यदि जल कर में 20% की वृद्धि के कारण पानी की खपत में 20% की कमी हो जाती है, तो कुल कर में कितने प्रतिशत की वृद्धि/कमी होगी?

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The average salary of all the workers in a workshop is ₹8,000….

The average salary of all the workers in a workshop is ₹8,000. The average salary of 7 technicians is ₹12,000 and the average salary of the rest of the workers is ₹6,000. The total number of workers in the workshop is: एक कार्यशाला के सभी कर्मचारियों का औसत वेतन ₹8,000 है। 7 तकनीशियनों का औसत

The average salary of all the workers in a workshop is ₹8,000…. Read More »

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