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.

The average age of 30 students in a group is 18 years.

The average age of 30 students in a group is 18 years. When the teacher’s age is included, the average age of the group increases by 1 year. What is the teacher’s age (in years)? एक समूह में 30 विद्यार्थियों  की औसत आयु 18 वर्ष है। जब शिक्षक की आयु को आयु शामिल की जाती […]

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Two numbers are in the ratio of 4 : 9.

Two numbers are in the ratio of 4 : 9. If the mean proportional between them is 24, find the positive difference between the two numbers. दो संख्याएँ 4 : 9 के अनुपात में है। यदि उनका माध्यानुपाती 24 है, तो दोनों सख्याओं के बीच धनात्मक अंतर ज्ञात कीजिए।

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A class of 30 students appeared in a test.

A class of 30 students appeared in a test. The average score of 12 students is 80, and that of the rest is 70. What is the average score of the class? 30 छात्रों की एक कक्षा एक परीक्षा में शामिल हुई  12 छात्रों का औसत प्राप्तांक 80 है, और शेष छात्रों का औसत प्राप्तांक

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In a 100-marks test, the average of marks scored by 50 students

In a 100-marks test, the average of marks scored by 50 students was found to be 65. Later on, it was discovered that a score of 88 was misread as 68. Find the correct average. 100 अंकों की एक परीक्षा में 50 विद्यार्थियों  द्वारा प्राप्त अंकों का औसत 65 पाया गया। बाद में यह ज्ञात

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The average of the sales of an electronics shop in the years 1991,

The average of the sales of an electronics shop in the years 1991, 1992, 1993 and 1994 is 2000, and that for the years 1992, 1993, 1994 and 1995 is 2200. If the sales in 1995 are 1800, find the sales in 1991. वर्ष 1991, 1992, 1993 और 1994 में  एक इलेक्ट्रॉनिक्स दुकान की  बिक्री

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