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Practice each question, then open the answer or worked solution.
Question: 13
How many more deer are there than bison?
Answer: Number of deer = 117
Number of bisons = 37
Number of deer more than bison = Number of deer – Number of bison
= 117 – 37
= 80
So, there are 80 more deer than bison.
Question: 14
How many people must Bonomala have counted?
214 / 154 / 134 / 177
Answer: Total number of animals = 117 deer + 37 bisons
= 154
The number of people given is less than 200. So, the number of people must be greater than 154 but less than 200.
Hence, Bonomala must have counted 177 people.
Question: 15
They have spent 1 hour there. What time is it?
Answer: It is given that they reached Bhimbetka at 11 O’clock.
So, 11 O’clock + 1 hour = 12 O’clock
Therefore, it is 12 O’clock.
Question: 16
They are now moving towards Bhopal. They should reach there in less than 1 hour, at about __________ O’clock.
Answer: At 12 O’clock, they leave from Bhimbetka. They are now moving towards Bhopal. Thus, they should reach there in less than 1 hour, i.e., at about 1 O’clock.
Question: 17
Each child is to be given 1 orange, 1 banana and 5 biscuits. All the children take oranges and biscuits, but 38 children do not take bananas. How many oranges, biscuits and bananas are distributed?
Answer: The total number of students going on a trip = 210
Each student was given 1 orange, 1 banana and 5 biscuits.
Hence, the total number of oranges distributed to 210 students = 1 × 210 = 210
38 students refused to take bananas. Then, the total number of students who took bananas = 210 – 38
= 172
Therefore, the total number of bananas distributed to 210 students = 210 × 5
= 1050
Thus, 210 oranges, 172 bananas and 1050 biscuits were distributed among all the students going on the trip
Manjeet and Bhanu quickly finish their lunch and start asking for puzzles to pass the time.
Question: 18
Tell me the number, which is exactly between 100 and 150
Answer: 125 is the number, which is exactly between 100 and 150
Question: 19
I gave four toffees each to four of my friends, and three toffees were left with me. How many toffees did I have?
Answer: Given, the number of toffees given to 4 friends = 4
The number of toffees left with me = 3
The total number of toffees = The number of toffees I gave to my 4 friends + The number of toffees left with me
= 4 × 4 + 3
= 16 + 3
= 19 toffees
Therefore, the total number of toffees I have = 19 toffees
Question: 20
What number can you make using 3, 5 and 7? You can make 357 and 537. What others?
Answer: The other number made using 3, 5 and 7 are 375, 573, 735 and 753.
Question: 21
A number becomes double if it is increased by 8. What is the number?
Answer: 8 + 8 = 16, which is the double of 8.
Therefore, the number will be 8.
Question: 22
Think of a number which can be divided by 2, 3 and 5 and comes between 25 and 50.
Answer: The numbers between 25 and 50 that are divisible by 2 are 26, 28, 30, 32, 34, 36, 38, 40, 42, 46 and 48.
The numbers between 25 and 50 that are divisible by 3 are 27, 30, 33, 36, 39, 42, 45 and 48.
The numbers between 25 and 50 that are divisible by 5 are 30, 35, 40 and 45.
Hence, the smallest number between 25 and 50 that can be divisible by 2, 3 and 5 is 30.