Math, asked by ssmishra82, 5 months ago

Sahil buys eight books for 72. What is the cost 45 books?
The bus fare for 20 persons from Delhi to Chandigarh is 9,500. Find the
The cost of 18 kg wheat is 216. Find the cost of one quintal wheat.
Four erasers are purchased for 10. Find the cost of one dozen erasers
1.
2
for 19 persons.
3
Arun earns +3,90,000 per year. Find his earnings for 25 weeks.
5.
6.
A worker earns 18,000 in 15 months.
How much will the worker earn in seven months?
(b) In how many months will he earn 73,600?
The weight of 72 books is 9 kg.
(a) Find the weight of 80 such books.
How many books will weigh 6 kg?
(a)
7.
(b)
86​

Answers

Answered by Anonymous
1

Answer:

Q.1. Ans-Hey here is your answer

__________________________

Cost of 8 books is 72 rupees

then,

Cost of 1 book is 72/8 rupees

:. Cost of 45 book is

= 45 × 72/8 rupees

= 45 × 9 rupees

= 405 rupees

__________________________

Hope it may helpful to you

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_________________________

Q2 ans The income of worker in 15 months = Rs.18000

The income of worker in 1 month = \frac{18000}{15} = Rs.1200

Now,

(a) The amount of money, the worker will earn in 7 months

= 7 × 1200

= Rs.8400

(b) Number of months that the worker will earn Rs.3600

= \frac{3600}{1200} = 3 months.

Hence,

The worker will earn Rs.8400 in 7 months  

and

The worker will earn Rs.3600 in 3 months

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ssmishra82: you are intelligent
Anonymous: why you reprt my answer
ssmishra82: ok
Answered by Anonymous
4

Answer:

Step-by-step explanation:

GIVEN:

The cost of 8 books = Rs. 72

TO FIND:

The cost of 45 books

ANALYSIS:

First we find the cost of 1 book at then find the cost of 45 books.

SOLUTION:

Cost of 1 book = 72/8

                        = Rs. 9

The cost of 45 books = 45 × 9

                                    = Rs. 405

THEREFORE, THE COST OF 45 BOOKS = Rs. 405

20 persons → Rs. 9500

1 person → Rs.  \frac{9500}{20}

= 475

19 persons →20 persons −1 person

=9500−475

=9025 Rs.

GIVEN:

The cost of 18 kg of wheat = 216

TO FIND:

The cost of 1 quintal wheat

We know that 1 Quintal = 100 kg.

ANALYSIS:

To find 1 quintal wheat then we first divide 216 by 18 to find the cost of 1 kg then to find the 1 quintl wheat then we multiply and we get the answer.

SOLUTION:

1 kg wheat will cost Rs 216/18 = Rs.12

100 kg wheat will cost Rs 12 × 100 = Rs.1200

Therefore, 1 Quintal wheat will cost Rs.1200.

GIVEN:

Total earnings in 1 year =Rs.3,90,000

There are 52 weeks in a year.

So, earnings in 52 weeks =3,90,000

SOLUTION:

Earnings in 1 week = =7500

Earnings in 25 week =7500×25=187500

THEREFORE, IN 25 WEEKS HIS EARNINGS IS 187,500

1 dozen erasers = 12 erasers. If 4 erasers are worth ₹10, 12 erasers would be worth - ₹10 × 3 = ₹30.

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