Question

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Exercise - 6.3
2.
If the cost of 3 apples is 60/-, then find the cost of 7 apples.
Uma bought 8 books for a total of 120. How much would she pay for just 5 books?
The cost of s fans is 11,000/-. Find the number of fans that can be purchased for
4.400/-
A car is moving at a constant speed covers a distance of 180 km in 3 hours. Find the
time taken by the car to cover a distance of 420 km at the same speed.
5. A truck requires 108 litres of diesel for covering a distance of 594 km. How much diesel
will be required by the truck to cover a distance of 1650 km ?
6.4 percentage
Generally we observe the following in our daily life,
A shop keeper offers as summer sale 25% flat discount on cotton clothes.
This year our school SSC nass percen​

Answer 1

Step-by-step explanation:

2. Cost of 3 apples=60/-

Cost of 1 apple=

$60 \div 3 = 20$

Cost of 7 apples=

$20 \times 7 = 140$

140/- is the answer.

3. Cost of 8 books=120/-

Cost of 1 book=

$120 \div 8 = 15$

Cost of 5 books=

$15 \times 5 = 75$

75 is the answer.

4. 180kms= 3hours

1hour= 180/3=60kms

Speed= Distance/Time

60kms= 420/Time

Time= 420/60 hours

Time=7 hours

7hours is the answer.

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Answer 2

Step-by-step explanation:

Step-by-step explanation:

2. Cost of 3 apples=60/-

Cost of 1 apple=

60 \div 3 = 2060÷3=20

Cost of 7 apples=

20 \times 7 = 14020×7=140

140/- is the answer.

3. Cost of 8 books=120/-

Cost of 1 book=

120 \div 8 = 15120÷8=15

Cost of 5 books=

15 \times 5 = 7515×5=75

75 is the answer.

4. 180kms= 3hours

1hour= 180/3=60kms

Speed= Distance/Time

60kms= 420/Time

Time= 420/60 hours

Time=7 hours

7hours is the answer.

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