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Science Olympiad Test: Number, Ranking and Time Sequence


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15 Questions MCQ Test Science Olympiad for Class 10 | Science Olympiad Test: Number, Ranking and Time Sequence

Science Olympiad Test: Number, Ranking and Time Sequence for Class 10 2022 is part of Science Olympiad for Class 10 preparation. The Science Olympiad Test: Number, Ranking and Time Sequence questions and answers have been prepared according to the Class 10 exam syllabus.The Science Olympiad Test: Number, Ranking and Time Sequence MCQs are made for Class 10 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Science Olympiad Test: Number, Ranking and Time Sequence below.
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Science Olympiad Test: Number, Ranking and Time Sequence - Question 1

If the seventh day of a month is three days earlier than Friday. What day will be on the nineteenth day of the month?

Detailed Solution for Science Olympiad Test: Number, Ranking and Time Sequence - Question 1

7th day of the month is three days earlier than Friday that is Tuesday
14th day is Tuesday
The 19th day is Sunday.

Science Olympiad Test: Number, Ranking and Time Sequence - Question 2

If 3 is subtracted from the middle digit of each of the following numbers and then the positions of the digits are reversed. Which of the following will be the last digit of the middle number after they are arranged in descending order
589, 362, 554, 371, 442

Detailed Solution for Science Olympiad Test: Number, Ranking and Time Sequence - Question 2

On subtracting 3 from the middle digit the numbers become
559, 332, 524, 341, 412
Now reverse the positions of digits,
955, 233, 425, 143, 214
Arranging the above numbers in descending order, we get

Hence 3 is the required number.

Science Olympiad Test: Number, Ranking and Time Sequence - Question 3

Sita is in 11th place from upwards in a group of 48 girls. If counting starts from downwards. What will be her place?

Detailed Solution for Science Olympiad Test: Number, Ranking and Time Sequence - Question 3

Sita’s place from downwards
= (45 - 11) + 1 = 35th

Science Olympiad Test: Number, Ranking and Time Sequence - Question 4

In the following sequence of instruction,1 stand for RUN, 2 stands for STOP, 3 stands for GO, 4 stands for SIT, 5 stands for WAIT, If the sequence were continued which instruction will come next?

4 45 453 453 145 312 45 453 453....

Detailed Solution for Science Olympiad Test: Number, Ranking and Time Sequence - Question 4

The given sequence may be analyzed 

∴ 1 =  Run 

Science Olympiad Test: Number, Ranking and Time Sequence - Question 5

A number is greater than three but less than 8, also the number is greater than 6 but less than 10. The number is

Detailed Solution for Science Olympiad Test: Number, Ranking and Time Sequence - Question 5

A number is greater than 3 but less than 8.

The number is greater than 6 but less than 10.

Hence number = 7

Science Olympiad Test: Number, Ranking and Time Sequence - Question 6

If Thursday was the day after the day before yesterday five days ago. What is the least number of days ago when Sunday was three days before the day after tomorrow?

Detailed Solution for Science Olympiad Test: Number, Ranking and Time Sequence - Question 6

Day after the day before yesterday is yesterday.
Now, five days ago, yesterday was Thursday.
So, five days ago, it was Friday.
Today is Wednesday.
Now three days before the day after tomorrow is yesterday.
Now it is on Monday that we say yesterday was Sunday.

Science Olympiad Test: Number, Ranking and Time Sequence - Question 7

In the series
6 4 1 2 2 8 7 4 2 1 5 3 8 6 2 1 7 1 4 1 3 2 8 6 
How many pairs of alternate numbers have a difference of 2?

Detailed Solution for Science Olympiad Test: Number, Ranking and Time Sequence - Question 7

There are two such pairs (4, 2) and (1, 3)

Science Olympiad Test: Number, Ranking and Time Sequence - Question 8

In a class of 60, where the girls are twice that of boys. Kamal ranked seventeenth from the top. If there are 9 girls ahead of Kamal, how many boys are after him in rank?

Detailed Solution for Science Olympiad Test: Number, Ranking and Time Sequence - Question 8

There are 20 boys and 40 girls. 
Number of students behind Kamal = 60 - 17 = 43
No. of girls ahead of Kamal = 9
No. of girls behind Kamal in rank = 40 - 9 = 31
No. of boys behind Kamal in rank = 43 - 31 = 12

Science Olympiad Test: Number, Ranking and Time Sequence - Question 9

On January 12, 1980, it was Saturday. The day of the week on January 12, 1979 was

Detailed Solution for Science Olympiad Test: Number, Ranking and Time Sequence - Question 9

The year 1979 is an ordinary year, it has one odd day.
So, the day on 12th January 1980, is one day beyond the day on 12th January 1979.
January 12, 1980 being Saturday
∴ January 12, 1979, was Friday.

Science Olympiad Test: Number, Ranking and Time Sequence - Question 10

How many times does the 29th day of the month occur in the 400 consecutive years?

Detailed Solution for Science Olympiad Test: Number, Ranking and Time Sequence - Question 10

In 400 consecutive years, there are 97 leap years. Hence in 400 consecutive years, February has 29th day 97 times.
400 ×  11 = 4400 times
29th day of month occurs = 4400 + 97 = 4497 times

Science Olympiad Test: Number, Ranking and Time Sequence - Question 11

The year next to 1991 having the same calendar is that of 1990 is

Detailed Solution for Science Olympiad Test: Number, Ranking and Time Sequence - Question 11

We go on counting the odd days from 1991 onwards till the sum is divisible by 7.
The number of such days is 14 up to the year 2001.
So, the calendar for 1991 will be repeated in the year 2002.

Science Olympiad Test: Number, Ranking and Time Sequence - Question 12

An accurate clock shows 8 o’clock in the morning. Through how many degrees will the hour hand rotate when the clock shows 2 o’clock in the afternoon?

Detailed Solution for Science Olympiad Test: Number, Ranking and Time Sequence - Question 12

8 o’clock - 2 o’clock = 6 hours

Angle traced by hour hand in 6 hours = 360/12 × 6 = 180

Science Olympiad Test: Number, Ranking and Time Sequence - Question 13

Mohan was born on March 6, 1993. The same year independence day was celebrated on Friday. On which day was Mohan born?

Detailed Solution for Science Olympiad Test: Number, Ranking and Time Sequence - Question 13

March 6, 1993 - August 15, 1993
Month = March  April  May  June  July  Aug
Days = 25 + 30 + 31 + 30 + 31 + 15
= 162 days = 23 weeks + 1 day

Science Olympiad Test: Number, Ranking and Time Sequence - Question 14

If Tuesday falls on the fourth of the month, then which day will fall three days after the 24th day?

Detailed Solution for Science Olympiad Test: Number, Ranking and Time Sequence - Question 14

The 4th day is Tuesday. So, the 11th, 18th, 25th days are also Tuesday.
Three days after the 24th day is 27th day which is Thursday.

Science Olympiad Test: Number, Ranking and Time Sequence - Question 15

Reaching the place of meeting 20 minutes before 8:50 hrs Suman found himself 30 minutes earlier than the man who came 40 minutes late. What was the scheduled time of the meeting?

Detailed Solution for Science Olympiad Test: Number, Ranking and Time Sequence - Question 15

Suman reached the place 20 minutes before 8:50 hours. That is 8:30 hours.
The man who was 40 minutes late would reach the place at 9:00 PM
∴ Schedule time of meeting = 8:20 hours

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