Problem 1 :
Mr. Jacob’s class has 27 students. Only 23 were present on Tuesday. How many were absent ?
Problem 2 :
In a library, there are 1028 books today. If the librarian had bought 76 books yesterday, how many books would have been in the library day before yesterday ?
Problem 3 :
In a drawing competition, 825 students took part and 423 among them were girls. How many boys took part in the competition ?
Problem 4 :
The temperature at 5 P.M. was 28°F. At 11 P.M, it had dropped 40°F. What was the temperature at midnight ?
Problem 5 :
Jonathan scored 632 marks and received grade A in an examination, Clark scored 75 marks less than Jonathan and received grade B in the same examination. Find the marks scored score Clark.
Problem 6 :
Peterson sold 1257 meatballs on Sunday. He sold 158 less more meatballs on Monday than on Saturday. How many meatballs did he sell on Monday ?
Problem 7 :
Distance from place X to Z is 183 miles, distance from place Y to place Z is two-third of the distance from place X to place Z. If Y is between X and Z, find the distance from place X to place Y.
Problem 8 :
In a running race, Kevin reached the target in 2 minutes 5 seconds and lost the first price by 12 seconds. In what time should he have completed the race to get the first price ?
Problem 1 :
Mr. Jacob’s class has 27 students. Only 23 were present on Tuesday. How many were absent ?
Solution :
To find the number of students absent, subtract 23 from 27.
= 27 - 23
= 4
So, there were 4 students absent on Tuesday.
Problem 2 :
In a library, there are 1028 books today. If the librarian had bought 76 books yesterday, how many books would have been in the library day before yesterday ?
Solution :
To find the number of books in the library day before yesterday, subtract 76 from 1028.
= 1028 - 76
= 952
So, there would have been 952 books in the library day before yesterday.
Problem 3 :
In a drawing competition, 825 students took part and 423 among them were girls. How many boys took part in the competition ?
Solution :
To find the number of boys, subtract 423 from 825.
= 825 - 423
= 402
So, 402 boys took part in the competition.
Problem 4 :
The temperature at 5 P.M. was 28°F. At 11 P.M, it had dropped 40°F. What was the temperature at midnight ?
Solution :
Visualize a number line. The drop from 28° to 0° is 28°. There are still 12 more degrees to drop. They will be below zero. -12°F is the temperature at 11 P.M.
Problem 5 :
Jonathan scored 632 marks and received grade A in an examination, Clark scored 75 marks less than Jonathan and received grade B in the same examination. Find the marks scored score Clark.
Solution :
To find the marks scored by Clark, subtract 75 from 632.
= 632 - 75
= 557
So, Clark scored 557 marks.
Problem 6 :
Peterson sold 1257 meatballs on Sunday. He sold 158 less more meatballs on Monday than on Saturday. How many meatballs did he sell on Monday ?
Solution :
Number of meatballs sold on Sunday :
= 1257
Given : On Monday, 158 less meatballs sold than on Sunday.
Then, number of meatballs sold on Monday :
= 1257 - 158
= 1099
So, Peterson sold 1099 meatballs on Monday.
Problem 7 :
Distance from place X to Z is 183 miles, distance from place Y to place Z is two-third of the distance from place X to place Z. If Y is between X and Z, find the distance from place X to place Y.
Solution :
Distance from place X to place Z :
= 183 miles
Distance from place Y to place Z :
= 2/3 ⋅ (Distance from X to Z)
= 2/3 ⋅ 183 miles
= 122 miles
Distance from place X to place Y :
= (Distance from X to Z) - (Distance from Y to Z)
= 183 - 122
= 61 miles
So, the distance from Place X to place Y is 61 miles.
Problem 8 :
In a running race, Kevin reached the target in 2 minutes 5 seconds and lost the first price by 12 seconds. In what time should he have completed the race to get the first price ?
Solution :
Actual time taken by Kevin to complete the race :
= 2 min 5 sec
= 120 sec + 5 sec
= 125 seconds
Given : Kevin lost the first price by 12 seconds.
Then, to find the time required to get the first price, subtract 12 from 125.
= 125 - 12
= 113 seconds
So, Kevin should have completed the race in 113 seconds to get the first price.
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