BLOG -5 FRACTIONS -27th APRIL
GOOD MORNING BOYS..
LET'S CONTINUE WITH THE FRACTIONS AND DECIMALS
A Small 20 minute test tomorrow on integer
Let us continue to solve rest of the questions from Exercise 2.3
Question 5
Saili plants 4 saplings, in a row, in her garden. The distance between two adjacent saplings is ¾ m. Find the distance between the first and the last sapling.
Let us continue to solve rest of the questions from Exercise 2.3
Question 5
Saili plants 4 saplings, in a row, in her garden. The distance between two adjacent saplings is ¾ m. Find the distance between the first and the last sapling.
Solution:-
From the question, it is given that,
The distance between two adjacent saplings = ¾ m
Number of saplings planted by Saili in a row = 4
Then, number of gap in saplings = ¾ × 4
= 3
∴The distance between the first and the last saplings = 3 × ¾
= (9/4) m
= 2 ¼ m
Hence, the distance between the first and the last saplings is 2 ¼ m.
Question 6
Lipika reads a book for 1 ¾ hours every day. She reads the entire book in 6 days. How many hours in all were required by her to read the book?
Watch the video to learn how to solve:-
Now try solving the question yourself.
Question 7
A car runs 16 km using 1 litre of petrol. How much distance will it cover using 2 ¾ litres of petrol.
Solution:-
From the question, it is given that,
The total number of distance travelled by a car in 1 liter of petrol = 16 km
Then,
Total quantity of petrol = 2 ¾ liter = 11/4 liters
Total number of distance travelled by car in 11/4 liters of petrol = (11/4) × 16
= 11 × 4
= 44 km
∴Total number of distance travelled by car in 11/4 liters of petrol is 44 km.
(a) Solution:-
Let the required number be x,
Then,
= (2/3) × (x) = (10/30)
By cross multiplication,
= x = (10/30) × (3/2)
= x = (10 × 3) / (30 × 2)
= x = (5 × 1) / (10 × 1)
= x = 5/10
∴The required number in the box is (5/20)
(ii) The simplest form of the number obtained in box is
Solution:-
The number in the box is 5/10
Then,
The simplest form of 5/10 is ½
Similarly, solve the part (b)
This is all for today.
HOMEWORK:
1. Complete the Exercise 2.3
2. Q8 (b) to be done yourself.
