Practical Mathematics
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Q1.There are 50 coins in total. some are 20-cent coins and some are 50-cent coins. Their total value is $20.70. How many 20 cent coins are there?
Correct Answer: B
Q2.Some students (boys &girls) from different schools appeared for an Olympiad exam 20%of boys & 15%of girls failed in exam.The number of boys who passed the exam was 70more than girls how passed exam.A total of 90students failed.Find number of student appeared in exam
Correct Answer: D
Solving the system of equations gives total students appeared = 500.
Q3.The temperature measured in Murree at noon was 16.6 degrees C. At midnight temperature was 20.4 degrees C lower. What was the temperature at midnight?
Correct Answer: C
16.6 - 20.4 = -3.8 degrees C.
Q4.Several number of cows on a farm consume the food in 150 days. If we reduce the number of cows by 10, then the food lasts for 10 more days. How many cows were there on the farm in the beginning?
Correct Answer: B
Correct answer is B: 160
Q5.The temperature measured in Murree at noon was 16.6°C. At midnight temperature was 20.4°C lower. What was the temperature at midnight?
Correct Answer: C
Correct answer is C: -3.8°C
Q6.Which number when multiplied by 13 (or added to itself 13 times in test notation) gives 104?
Correct Answer: C
The test implies 13x = 104. Solving for x: x = 104 / 13 = 8.
Q7.A runner runs 3 miles every Sunday. Each day before Sunday, he runs 1 mile. Find total miles run in 2 weeks.
Correct Answer: C
In 1 week: 1 Sunday (3 miles) + 6 other days (6 * 1 mile) = 9 miles. In 2 weeks: 9 * 2 = 18 miles.