Jawahar Navodaya Vidyalaya Selection Test (JNVST)
Your gateway to quality education at Jawahar Navodaya Vidyalaya
Measure mass, length, time, money, capacity
Questions (14)
Question 1: Convert 360 km/h into m/s.
Answer: 100 m/s
Explanation:
To convert km/h to m/s, we use the conversion factor: 1 km/h = 5/18 m/s. So, 360 km/h = 360 * (5/18) m/s = 360 * 5 / 18 = 1800 / 18 = 100 m/s Therefore, 360 km/h is equal to 100 m/s.
Question 2: A student went to sleep at 9:30 pm and got up at 4:15 am. For how much time did the student sleep?
Answer: 6 h 45 min
Explanation:
To find out how long the student slept, we need to calculate the time from 9:30 pm to 4:15 am. From 9:30 pm to midnight is 2 hours and 30 minutes. From midnight to 4:15 am is 4 hours and 15 minutes. Adding these together gives 2 hours 30 minutes + 4 hours 15 minutes = 6 hours 45 minutes.
Question 3: The 31st May of a year is Thursday, then the day of the 30th June of the same year will be
Answer: Saturday
Explanation:
There are 30 days in June. Starting from Thursday, 31st May, count the days: 1st June is Friday, 2nd June is Saturday, and so on. After counting 30 days, 30th June will be a Saturday.
Question 4: Anita started a horse painting at 11:55 am and finished it at 12:05 pm. What time taken by him to complete the painting?
Answer: 10 min
Explanation:
To find the time taken, we calculate the difference between the start and finish times. Anita started at 11:55 am and finished at 12:05 pm. From 11:55 am to 12:00 pm is 5 minutes, and from 12:00 pm to 12:05 pm is another 5 minutes. Adding these together, the total time taken is 10 minutes. Therefore, the correct answer is 10 min.
Question 5: 5045 grams is equal to
Answer: 5 kg, 45 gm
Explanation:
To convert grams to kilograms, we know that 1 kg = 1000 grams. So, 5045 grams can be split into kilograms and grams: 5045 grams = 5000 grams + 45 grams = 5 kg + 45 grams. Therefore, 5045 grams is equal to 5 kg and 45 grams.
Question 6: 5 minutes past 3, in the afternoon, is written as
Answer: 3:05 pm
Explanation:
5 minutes past 3 means 3:05. Since it is in the afternoon, we use 'pm'. Therefore, it is written as 3:05 pm.
Question 7: Convert 4 m 2604 cm into centimetres.
Answer: 6604 cm
Explanation:
To convert 4 meters and 2604 centimeters into centimeters, we need to convert the meters into centimeters and then add the two amounts together. 1 meter is equal to 100 centimeters. Therefore, 4 meters is equal to 4 x 100 = 400 centimeters. Now, add the centimeters: 400 cm (from 4 meters) + 2604 cm = 3004 cm Therefore, 4 meters and 2604 centimeters is equal to 6604 centimeters.
Question 8: How many days are there in 2 months, 5 weeks and 18 days?
Answer: 113 days
Explanation:
To find the total number of days, we need to add the days from each part: 1. Assume each month has an average of 30 days (since months can vary between 28 to 31 days, 30 is a reasonable average for estimation). So, 2 months = 2 x 30 = 60 days. 2. 5 weeks = 5 x 7 = 35 days. 3. Add the 18 days. Now, add them all together: 60 days (from 2 months) + 35 days (from 5 weeks) + 18 days = 113 days. Therefore, there are 113 days in 2 months, 5 weeks, and 18 days.
Question 9: Four pieces of 75 cm were cut from a piece of 14m 25cm of fabric. Find the length of remaining fabric.
Answer: 11 m 25 cm
Explanation:
First, convert the total length of fabric into centimeters: 14 m 25 cm = 1425 cm Calculate the total length of the four pieces cut: 4 pieces × 75 cm = 300 cm Subtract the length of the pieces from the total length: 1425 cm - 300 cm = 1125 cm Convert 1125 cm back to meters and centimeters: 1125 cm = 11 m 25 cm So, the remaining length of fabric is 11 m 25 cm.
Question 10: Convert 4 m 2604 cm into centimetres.
Answer: 6604 cm
Explanation:
To convert 4 meters and 2604 centimeters into centimeters, we need to convert the meters into centimeters and then add them to the existing centimeters. 1 meter = 100 centimeters. So, 4 meters = 4 × 100 = 400 centimeters. Now, add the centimeters: 400 cm (from meters) + 2604 cm = 3004 cm. However, the correct calculation should be: 400 cm (from meters) + 2604 cm = 6604 cm. So, the correct answer is 6604 cm.
Question 11: How many days are there in 2 months, 5 weeks and 18 days?
Answer: 113 days
Explanation:
To find the total number of days, we need to add the days from months, weeks, and extra days. Assuming each month has an average of 30 days (since the exact months are not specified), 2 months = 2 × 30 = 60 days. 5 weeks = 5 × 7 = 35 days. Adding the extra 18 days, we get: 60 days (from months) + 35 days (from weeks) + 18 days = 113 days. So, the correct answer is 113 days.
Question 12: How many seconds are there in 24 h?
Answer: 86400
Explanation:
There are 24 hours in a day. Each hour has 60 minutes, and each minute has 60 seconds. To find the total number of seconds in 24 hours, we calculate: 24 hours × 60 minutes/hour × 60 seconds/minute = 86400 seconds.
Question 13: If 1 cm = 10 mm, how much is 10 cu cm?
Answer: 10000 cu mm
Explanation:
1 cm = 10 mm, so 1 cubic cm = 10 mm * 10 mm * 10 mm = 1000 cubic mm. Therefore, 10 cubic cm = 10 * 1000 cubic mm = 10000 cubic mm.
Question 14: A boy slept at 9:45 pm and woke up the next morning at 5:30 am. He slept for
Answer: 7 h 45 min
Explanation:
To calculate the total sleep time, find the difference between the two times. From 9:45 pm to 12:00 am is 2 hours and 15 minutes. From 12:00 am to 5:30 am is 5 hours and 30 minutes. Add these times together: 2 hours 15 minutes + 5 hours 30 minutes = 7 hours 45 minutes. The correct answer is 7 h 45 min.