2 Marks Questions

Question 12 Marks

Mother has made laddus. She gives some laddus to guests and family members; still $5$ laddus remain. If the number of laddus mother gave away is $l,$ how many laddus did she make $?$

Answer

Let, the number of laddus mother gave away to guests and family members be $'l'$ .As per the question, the number of laddus left out with the mother$= 5$.
As per the logic, the number of laddus mother have$=($ number of laddus she gave away$ )+($number of laddus remaining$).$
So, the number of laddus mother have originally$=l+5.$

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Question 22 Marks

Radha is drawing a dot Rangoli (a beautiful pattern of lines joining dots) with chalk powder. She has $9$ dots in a row. How many dots will her Rangoli have for r rows? How many dots are there if there are $8$ rows? If there are $10$ rows?

Answer

We are given that:
Number of dots in $1$ row $= 9$
and Number of rows $= r$
Therefore, Total number of dots in $r$ rows $=$ Number of rows $\times$ Number of dots in a row $= 9 \times r = 9r$
Hence, Number of dots in $8$ rows $= 8 \times 9 = 72$
Also, Number of dots in $10$ rows $= 10 \times 9 = 90$

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Question 32 Marks

The teacher distributes $5$ pencils per student. Can you tell how many pencils are needed, given the number of students? (Use s for number of students.)

Answer

Number of pencils to be distributed to each student $= 5$
And, let the number of students in class be $'s'.$
As per the logic, Number of pencils needed = (Number of students in the class) $\times$ (Number of pencils to be distributed to one student)
So, Number of pencils needed $= 5 \times s = 5s$

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Question 42 Marks

If there are $50$ mangoes in a box, how will you write the total number of mangoes in terms of the number of boxes? (use b for the number of students.)

Answer

From the above figure, it can be concluded that the letter Z will require 3 matchsticks
Therefore, The pattern is $3n.$

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Question 52 Marks

Cadets are marching in a parade. There are $5$ cadets in a row. What is the rule, which gives the number of cadets, given the number of rows? (Use $n$ for the number of rows.)

Answer

Number of cadets $=$ Number of cadets in each row $\times$ Number of rows
Since,
Number of cadets in each row $= 5$
Number of rows $= n$
So, Number of cadets $= 5 \times n = 5n$

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Question 62 Marks

Oranges are to be transferred from larger boxes into smaller boxes. When a large box is emptied, the oranges from if fill two smaller boxes and still $10$ oranges remain outside. If the number of oranges in a small box are taken to be $x,$ what is the number of oranges in the larger box$?$

Answer

Let the number of oranges emptied into each smaller box be $'x'.$
According to the question, the number of oranges still left after transferring is $10$
So the number of oranges in larger box$=$ number of oranges in two smaller boxes $+10.$
$=x+x+10$
$=2x+10.$
Therefore, the number of oranges in larger box$=2x+10$

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