UPSC CDS/OTA
Average
Mathematics
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Questions
30
Time
30 min
Marks
30
Solutions
All inline
Q1The average temperature of Monday to Wednesday is 37°(c) while the average temperature of Tuesday to Thursday is 34°(c) The temperature of Thursday is 4/5 times that of Monday. Find the temperature of Thursday?MediumSolve →Q2There are 42 students in a hostel, due to the admission of 13 new students, the expenses of the mess increased by rupees 30 per day, while per day expenditure per student is reduced by rupees 3. What was the original expenditure of the mess per day?MediumSolve →Q3There are 4 natural numbers. If the average of any 3 numbers is added with the 4th number 29, 23, 21 and 17 will be obtained(d) Find all the 4 natural numbers?MediumSolve →Q4The average of 100 numbers is 46, but it was found that 2 numbers 16 and 43 are mistakenly calculated as 61 and 34, find the correct average if it was also found that total numbers are only 90?MediumSolve →Q5A batsman has a certain average in his 11 innings. He scored 90 runs in 12th inning, due to this his average decreased by 5 runs. Then find his current average?MediumSolve →Q6The batting average of a batsman in 40 innings is 50 runs. If the difference between his highest and lowest score is 172. If these both innings are not taking into consideration then the average becomes 48. Find his highest score?MediumSolve →Q7The average weight of 8 persons is increased by 2.5 kg, when one of them who weighs 56 kg is replaced by a new man. Find the weight of a new man?MediumSolve →Q8The average weight of A, B and C is 84 kg. If D joins the average weight becomes 80 kg. If another person E, who is 3 kg heavier than D replaces A, then the average weight of B, C, D and E becomes 79 kg. Find the weight of A?MediumSolve →Q93 years ago, the average family of five members was 17 years. A baby has been born; the average age of the family is the same today. Find the age of the child?MediumSolve →Q10Five years ago, the average age of husband and wife was 23 years. Today the average age of husband, wife and child is 20 years. How old is the child?MediumSolve →
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