Sample QuestionsKnowing Our Numbers questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
The greatest number which always divides the product of the predecessor and successor of an odd natural number other than $1,$ is:
Answer: B.
View full solution →Smallest $6-$digit number that can be formed by the digits $9, 6, 0, 5, 8, 1$ is$:$
- A
$0,15,689$
- ✓
$1,05,689$
- C
$5,01,689$
- D
$9,86,510$
Answer: B.
View full solution →Which of the following statements is not true$?$
- A
Both addition and multiplication are associative for whole numbers.
- ✓
Zero is the identity for multiplication of whole numbers.
- C
Addition and multiplication both are commutative for whole numbers.
- D
Multiplication is distributive over addition for whole numbers.
Answer: B.
View full solution →Mark the correct alternative in the following:
The difference of the smallest three digit number and the largest two digit number is:
Answer: B.
View full solution →$1\text{m}^{2}=$..........$\text{cm}^{2}$
Answer: B.
View full solution →Directions: In the following questions, the $A$ssertions ($A$) and $R$eason(s) ($R$) have been put forward. $R$ead both the statements carefully and choose the correct alternative from the following: Assertion ($A$): $1000 $gram $= 1$ Kilogram Reason (R): $1$ gram $= 1000$ milligrams.
- A
Both $A$ and $R$ are true and $R$ is the correct explanation of $A$
- B
Both $A$ and $R$ are true but $R$ is not the correct explanation of $A$
- C
$A$ is true but $R$ is false
- ✓
$A$ is false but $R$ is true
Answer: D.
View full solution →Directions: In the following questions, the $A$ssertions ($A$) and $R$eason(s) ($R$) have been put forward. $R$ead both the statements carefully and choose the correct alternative from the following:
$A$ssertion ($A$): $7691$ is smaller number than $9999.$
$R$eason ($R$): When a number is smaller or smallest than the second or rest quantitiesit is known as smaller number
- ✓
Both $A$ and $R$ are true and $R$ is the correct explanation of $A$
- B
Both $A$ and $R$ are true but $R$ is not the correct explanation of $A$
- C
$A$ is true but $R$ is false
- D
$A$ is false but $R$ is true
Answer: A.
View full solution →Directions: In the following questions, the $A$ssertions ($A$) and $R$eason(s) ($R$) have been put forward. $R$ead both the statements carefully and choose the correct alternative from the following:
$A$ssertion ($A$): $59785$ is the greatest number among $382, 4972, 18, 59785, 750.$
$R$eason ($R$): When a number is bigger or larger than the second or rest quantities or numbers it is known as greatest number.
- ✓
Both $A$ and $R$ are true and $R$ is the correct explanation of $A$
- B
Both $A$ and $R$ are true but $R$ is not the correct explanation of $A$
- C
$A$ is true but $R$ is false
- D
$A$ is false but $R$ is true
Answer: A.
View full solution →Directions: In the following questions, the Assertions ($A$) and $R$eason(s) ($R$) have been put forward. Read both the statements carefully and choose the correct alternative from the following:
$A$ssertion ($A$):$5000, 7500, 85400, 7861$ are arranged in descending order.
$R$eason ($R$): Descending order means arrangement from the greatest to the smallest.
- A
Both $A$ and $R$ are true and $R$ is the correct explanation of $A$
- B
Both $A$ and $R$ are true but $R$ is not the correct explanation of $A$
- C
$A$ is true but $R$ is false
- ✓
$A$ is false but $R$ is true
Answer: D.
View full solution →Directions: In the following questions, the Assertions ($A$) and Reason(s) ($R$) have been put forward. Read both the statements carefully and choose the correct alternative from the following:
$A$ssertion ($A$): $92547, 88715, 45321, 1971$ are arranged in descending order.
$R$eason ($R$): Descending order means arrangement from the greatest to the smallest.
- ✓
Both $A$ and $R$ are true and $R$ is the correct explanation of $A$
- B
Both $A$ and $R$ are true but $R$ is not the correct explanation of $A$
- C
$A$ is true but $R$ is false
- D
$A$ is false but $R$ is true
Answer: A.
View full solution →$1$ mile is greater than $1\ km.$
View full solution →$10m$ is equal to $32.8084$ foot.
View full solution →The estimated product of $602$ and $49$ is $30,000.$
View full solution →$6103$ is rounded off to the nearest thousands as $0.$
View full solution →$438$ is rounded off to the nearest thousands as $0$
View full solution →$1$ million $= $________ lakh
View full solution →$1$ crore $=$ ________ million
View full solution →$1$ crore $=$ ________ ten lakh (million).
View full solution →$1$ million $=$ ________ hundred thousand
View full solution →$1$ lakh $=$ ________ ten thousand.
View full solution →Insert comma suitably and write the name according to International System of Numeration:
$48049831$
View full solution →Insert comma suitably and write the name according to International System of Numeration:
$99985102$
View full solution →Insert comma suitably and write the name according to International System of Numeration:
$7452283$
View full solution →Insert comma suitably and write the name according to International System of Numeration:
$78921092$
View full solution →Insert comma suitably and write the names according to Indian System of Numeration:
$98432701$
View full solution →A student multiplied $7236$ by $65$ instead of multiplying by $56$. How much was his answer greater than the correct answer?
(Hint: Do you need to do both the multiplications?)
View full solution →A merchant had $₹ 78,592$ with her. She placed an order for purchasing $40$ radio sets at $₹ 1200$ each. How much money will remain with her after the purchase?
View full solution →A machine, on an average, manufactures $2,825$ screws a day. How many screws did it produce in the month of January, $2006$?
View full solution →Find the difference between the greatest and the least $5$-digit number that can be written using the digits $6, 2, 7, 4, 3$ each only once.
View full solution →Kirti Bookstore sold books worth $₹ 2,85,891$ in the first week of June and books worth $₹ 4,00,768$ in the second week of the month. How much was the sale for the two weeks together? In which week was the sale greater and by how much?
View full solution →To stitch a shirt $2m 15\ cm$ cloth is needed. Out of $40m$ cloth, how many shirts can be stitched and how much cloth will remain?
(Hint: convert data in $\ cm.)$
View full solution →A vessel has 4 litres and $500ml$ of curd. In how many glasses, each of $25ml$ capacity, can it be filled?
View full solution →The distance between the school and a student’s house is $1 \ km 875 m$. Every day she walks both ways. Find the total distance covered by her in six days.
View full solution →Medicine is packed in boxes, each weighing $4\ kg 500g$. How many such boxes can be loaded in a van which cannot carry beyond $800 \ kg?$
View full solution →The number of sheets of paper available for making notebooks is $75,000$. Each sheet makes $8$ pages of a notebook. Each notebook contains $200$ pages. How many notebooks can be made from the paper available?
View full solution →