Question types

Whole Numbers question types

243 questions across 7 question groups — pick any mix to generate a MATHS paper with step-by-step answer keys.

243
Questions
7
Question groups
5
Question types
Sample Questions

Whole Numbers questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Assertion (A): For every whole number a, we have a x 0 = 0 x a = a.
Reason (R): If a and b are any two whole numbers then (a x b) = (b x a).
  • A
    Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
  • B
    Both Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).
  • C
    Assertion (A) is true but Reason (R) is false.
  • Assertion (A) is false but Reason (R) is true.

Answer: D.

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Assertion (A): 3 x 7 is an odd number.
Reason (R): The sum and the product of two odd numbers are both always odd.
  • A
    Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
  • B
    Both Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).
  • Assertion (A) is true but Reason (R) is false.
  • D
    Assertion (A) is false but Reason (R) is true.

Answer: C.

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Assertion (A): For any three whole numbers a, b and c, we have a x (b + c) = (a x b) + (a x c).
Reason (R): Distributive law of multiplication over subtraction does not hold for whole numbers.
  • A
    Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
  • B
    Both Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).
  • Assertion (A) is true but Reason (R) is false.
  • D
    Assertion (A) is false but Reason (R) is true.

Answer: C.

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Assertion (A): For any three whole numbers x, y and z. we have (x + y) + z = x + (y + z).
Reason (R): In the addition of whole numbers, the commutative law always holds.
  • A
    Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
  • Both Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).
  • C
    Assertion (A) is true but Reason (R) is false.
  • D
    Assertion (A) is false but Reason (R) is true.

Answer: B.

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Q 243 Marks Question3 Marks
$50$ chairs and $30$ blackboards were purchased for a school. If each chair costs $Rs. 1065$ and each blackboard cost $Rs. 1645$, find the total amount of the bill.
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Match the following columns on whole numbers:
S.No.
Column A
S.No.
Column B
$(a)$
$137 + 63 = 63 + 137$
$(i)$
Associativity of multiplication
$(b)$
$(16 \times 25)$ is a number
$(ii)$
Commutativity of multiplication
$(c)$
$365 \times 18 = 18 \times 365$
$(iii)$
Distributive law of multiplication over addition.
$(d)$
$(d) (86 \times 14) \times 25 = 86 \times (14 \times 25)$
$(iv)$
Commutativity of addition
$(e)$
$23 \times (80 + 5) = (23 \times 80) + (23 \times 5)$
$(v)$
Closure property for multiplication
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A school has a total strength of 4860 students. One out of every 15 students is selected to participate in the annual science fest.
1. How many students are selected for the annual science fest ?
(a) 374$\quad$(b) 324$\quad$(c) 294$\quad$(d) 254
2. On dividing 4860 by a certain number, the quotient is 40 and the remainder is 20. Find the divisor.
(a) 101$\quad$(b) 111$\quad$(c) 121$\quad$(d) 132
3. The value of 4860 x 96 + 4860 x 4 is
(a) 972000$\quad$(b) 542000$\quad$(c) 728000$\quad$(d) 486000
4. Find the sum (124 + 4860) + 216.
(a) 5000$\quad$(b) 5250$\quad$(c) 5400$\quad$(d) 5200
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In a plantation drive, 9625 saplings were planted in the city. An equal number of saplings were planted on each street and 77 streets were identified for the purpose.
1. How many saplings were planted on each street ?
(a) 385$\quad$(b) 315$\quad$(c) 255$\quad$(d) 125
2. How many more saplings were required, so that their number was equal to the greatest number of four digits ?
(a) 374$\quad$(b) 385$\quad$(c) 225$\quad$(d) 256
3. What least number should be added to 9625 to get a number exactly divisible by 12 ?
(a) 7$\quad$(b) 8$\quad$(c) 9$\quad$(d) 11
4. The predecessor of 9625 is
(a) 9620$\quad$(b) 9630$\quad$(c) 9624$\quad$(d) 9626
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