NCERT Solutions Class 5 Mathematics Chapter 1 The Fish Tale

(1) At what price per kg did Fazila sell the kingfish?
Sol (1) Price of 8kg kingfish=Rs.1200 Price of 1kg kingfish=Rs. (1200/8) = Rs. 150

(2) Floramma has sold 10kg prawns today. How much money did she get for that?
Sol. (2) Price of 1kg prawns= Rs. 150 Price of 10kg prawns=Rs. (10 x 150) =Rs. 1500

(3) Gracy sold 6 kg sword fish. Mini has earned as much money as Gracy. How many kg of sardines did Mini sell?
Sol. (3) Cost of 1 kg swordfish= Rs. 60
Gracy earned on selling 6 kg swordfish=Rs. (6 x 60) = Rs. 360
Earning of mini = Rs. 360 Cost of Sadines=Rs. 40 per kg
Quantity of sardines sold for Rs. 360= (360/40) kg= 9kg

(4) Basher has Rs.100. He spends one-fourth of the money on squid and another three-fourth on prawns.
(a) How many kilograms of squid did he buy?
(b) How many kilograms of prawns did he buy?
Sol. We have, One-fourth of Rs.100 =Rs. (100/4) =Rs.25
Three-fourth of Rs.100= Rs. (100/4) x 3 = Rs. (25 x 3) = Rs.75
(a) Cost of Squid= Rs. 50 per kg.  
For Rs. 25, quantity of squid brought= half kg
[Half of Rs. 50 is Rs. 50]
(b) Cost of prawns= Rs. 150 per kg
For Rs. 75, quantity of prawns brought= half kg
[Half of Rs. 150 is Rs. 150]

Ques. Women’s ‘Meenkar Bank’
The meeting of the Meenkar Bank has just begun. Fazila is the president.
Twenty fisherwomen have made their own bank. Each saves Rs. 25 every month and puts it in the bank.
1.How much money does the group collect each month?
2. How much money will be collected in ten years?
Sol. (1) Money collected by each member is Rs. 25 per month.
Money collected by the group of 20 members per month=Rs. (20 25) =Rs. 500
(2) Money collected by the group in 10 years= Rs. (10 12 500) =Rs. 60000

Ques. (a) Gracy took a loan of Rs. 4000 to buy a net. She paid back Rs. 345 every month for one year. How much money did she pay back to the bank?
Sol. (a) Loan taken by Gracy=Rs. 4000
Amount paid at the rate of Rs. 345 per month for one year= Rs. (345 12) =Rs. 4140
Gracy paid back to the bank Rs. 4140

(b) Jhansi and her sister took a loan of Rs. 21000 to buy a long boat. They paid back a total of Rs. 23520 in one year. How much did they pay back every month?
Sol. (b) Amount paid back by Jhansi and her sister to the bank in one year i.e.
12 months =Rs. 23250
Amount paid back every month=Rs. (23250/12) =Rs. 1960

Ques. Why Don’t We Start a New Fish-drying Factory?
The women of Meenkar Bank also want to start a factory to dry fish. The Panchayat has given them some land for that. Over the years they have saved Rs 74,000. They find out how much they will need for the factory. Fazila writes the things they need to buy to begin. See the table for the cost of each item and the number of items they want to buy. Find the total cost.

Total cost to set up the factory = ____________
When fresh fish is dried it becomes 1/3 its weight. In one month they plan to dry 6000 kg of fresh fish. How much dried fish will they get in a month?____________
Sol.

Total cost to set up the factory = Rs. 54500
Quantity of dried fish obtained in one month= 1/3 of 6000 kg = (6000/3) kg= 2000kg

Ques. Let us first calculate for 6 kg of fresh fish.
We buy fresh fish for Rs. 15 per kg
We sell dried fish for Rs. 70 per kg
We dry 6 kg fresh fish to get ………. Kg dried fish
For 6 kg fresh fish we have to pay 6x  ………. = Rs. 90
We will sell 2 kg dried fish and get 2 x ………. = Rs.………
So if we dry 6 kg fresh fish we will earn ………-90= Rs. ……….
But it we dry 6000 kg we can earn Rs………… x 1000 in one month!
Sol.
We dry 6 kg fresh fish to get 2kg dried fish [6/3=2]
For 6 kg fresh fish we have to pay 6 x Rs. 15 = Rs. 90
We will sell 2kg dried fish and get 2 x Rs. 70 = Rs. 140
So if we dry 6 kg fresh fish we will earn Rs. 140-Rs. 90= Rs. 50
But if we dry 6000 kg we can earn Rs 50 x 1000=Rs. 5000 in one month!

Ques. Jhansi- I found that for 6000 kg fish we would need 1500 kg salt every month! Its price is Rs. 2 per kg Monthly costs:
(a) Salt 1500 x 2= Rs.………..
(b) Packing and bus charges= Rs. 3000
So the total monthly cost of drying and selling the fish =Rs. ………..
Fazila- That sounds very good! Our calculations tell us that every month our
Bank will earn Rs. 44000!
1. Check to see if you also get the same answer.
Sol.
Monthly costs-
(a) Salt =1500 x Rs. 2 = Rs. 30000
(b) Packing and bus charges= Rs. 3000
So, the total monthly cost of drying and selling the fish=Rs. 3000+Rs. 3000= Rs. 6000
They earn Rs. (50000-6000) = Rs. 44000 per month
Their answer is correct.

Question. This is part of a biscuit packet wrapper. Which of these can be found out from the information on it?

(a) The number of biscuits in this packet.
(b) The price of each biscuit
(c) The weight of each biscuit
(d) The cost per kg of the biscuits

Answer : D

Question. These are the two types of 'kad ai' that a certain shop has. Shalini visits this shop and buys the steel kadai. However, she changes her mind the next day and comes to take the non-stick one instead. She pays for the excess amount with a 500 rupee note. What amount should be returned to her?

(a) Rs 363
(b) Rs 265
(c) Rs 137
(d) Rs 128

Answer : A

Question. Which of the following could be written as SIX AND A HALF THOUSAND?
(a) 6050
(b) 6500
(c) 6550
(d) 6000

Answer : B

Question. If box represents TEN, then given image represents how much?

(a) 234
(b) 432
(c) 2340
(d) 4320

Answer : C

Question. What is the total value of the notes and coins shown here?

(a) Rs 50.55
(b) Rs 55.50
(c) Rs 65.50
(d) Rs 110

Answer : B

Question. A game of football consists of a total playing time of 90 minutes and a break of 15 minutes at half time. A football match begins at 3:25 PM. At what time will the match end?
(a) 5:10 PM
(b) 4:15 PM
(c) 4:30 PM
(d) 4:40 PM

Answer : A

Question. Mrs. Roy buys two cauliflowers in the market which the vegetable seller weighs as shown below.
How much did the two cauliflowers (together) weigh?

(a) 350 g
(b) 650  g
(c) 1 kg
(d) 1 kg 350 g

Answer : B

Question. 217 + 398 + 783 - 308 + 7 equals
(a) 1195
(b) 1097
(c) 1083
(d) 997

Answer : B

Question. The system of telling the time using 'am' and 'pm' is called the 12 hour clock. Many timetables use the 24 hour clock instead. Study this table:
If the Karnataka Express leaves Itarsi at 0840 hour and reaches Jalgaon at 1310 hour then how much time does it take to cover these stations?

(a) 4 hours 30 minutes
(b) 5 hours 30 minutes
(c) 6 hours 30 minutes
(d) 8 hours 40 minutes

Answer : A

Question. 59 – 39 = 29 - ?
Here, ? stands for
(a) 0
(b) 2
(c) 9
(d) 18

Answer : C

Question. 95 + 95 + 95 + 95 + 95 - 93 - 93 - 93 - 93 - 93 = 5 times ☐
The number that should be in the empty box is
(a) 2
(b) 5
(c) 93
(d) 95

Answer : A

Question. Aman wanted to use his calculator to subtract 984 from 2503. He entered 2303 - 984 by mistake. What could he do to correct his mistake?
(a) Add 2
(b) Subtract 2
(c) Add 200
(d) Subtract 200

Answer : C

Question. The number that is 100 less than 10000 is
(a) Nine thousand
(b) Nine thousand nine hundred
(c) Ten thousand nine hundred
(d) Nine thousand nine hundred and ninety

Answer : B