📘 “The Fish Tale” – Important Notes + 20 Most-Important Questions & Solutions
Important Notes (Quick Revision)
- Haiku: A short 3-line poem about nature (examples in the chapter about fish and lakes).
- Drawing with shapes: Use square + triangle (and other shapes) to draw fish and sea animals.
- Smallest vs Biggest fish: Smallest ≈ 1 cm. Biggest fish is the Whale Shark (not a whale) – recorded length ≈ 18 m, weight ≈ 16,000 kg.
- Fish vs Whale: Fish breathe through gills & lay eggs. Whales breathe through nose & give birth to babies. Fish tail is vertical; whale tail is horizontal (like two legs).
- “School” of fish: Fish move in groups called schools for safety from bigger fish.
- Boats & Speeds:
- Log boat: 4 km/h, Catch/trip: 20 kg
- Long tail boat: 12 km/h, Catch/trip: 600 kg
- Motor boat: 20 km/h, Catch/trip: 800 kg
- Machine boat (trawler): 22 km/h, Catch/trip: 6000 kg
- Concern about trawlers: Catch too many fish (even baby fish) → very few left near shore.
- Big Numbers: 1 lakh = 100,000; 1 crore = 100 lakh = 10,000,000.
- Typical counts mentioned: ~2 lakh boats in the country; about 100 lakh (1 crore) fish workers.
- Fish Market Prices (in chapter):
• Sardines: ₹40/kg• Sword fish: ₹60/kg• Prawns: ₹150/kg• Squid: ₹50/kg• Kingfish (example): 8 kg for ₹1200 → ₹150/kg
- Women’s ‘Meenkar Bank’: 20 fisherwomen; each saves ₹25/month; give loans for nets/boats; repay with interest.
- Dry Fish Factory Plan: Fresh fish → dried fish becomes 1/3 of fresh weight.
For 6000 kg fresh fish → 2000 kg dried fish. Buy fresh at ₹15/kg, sell dried at ₹70/kg. - Monthly costs (example): Salt 1500 kg at ₹2/kg = ₹3000; Packing+Bus = ₹3000 → total other monthly costs = ₹6000.
- Factory setup (example table): Bore well (₹3000 ×1), Bamboo racks (₹2000 ×20), Cement tanks (₹1000 ×4), Tray+knife (₹300 ×20), Buckets (₹75 ×20) → Total ₹54,500.
Speed & Distance: Distance = Speed × Time; Time = Distance ÷ Speed.
20 Most-Important Questions with Solutions
1) A log boat travels at 4 km/h. How long will it take to go 10 km?
Time = 10 ÷ 4 = 2.5 hours = 2 h 30 min.
2) A motor boat travels at 20 km/h. How far will it go in 3.5 hours?
Distance = 20 × 3.5 = 70 km.
3) A motor boat (20 km/h) has to cover 85 km. How much time will it take?
Time = 85 ÷ 20 = 4.25 h = 4 h 15 min.
4) In 7 trips, how much fish will each boat bring? (Log: 20 kg; Long tail: 600 kg; Motor: 800 kg; Machine: 6000 kg per trip)
Log: 20×7 = 140 kg • Long tail: 600×7 = 4200 kg • Motor: 800×7 = 5600 kg • Machine: 6000×7 = 42,000 kg.
5) How far can a motor boat go in 6 hours?
Distance = 20 × 6 = 120 km.
6) A long tail boat (12 km/h) must travel 60 km. How long will it take?
Time = 60 ÷ 12 = 5 hours.
7) Fazila sells a kingfish weighing 8 kg for ₹1200. What is the price per kg?
₹1200 ÷ 8 = ₹150/kg.
8) Floramma sells 10 kg prawns at ₹150/kg. How much money does she get?
10 × 150 = ₹1500.
9) Gracy sells 6 kg sword fish at ₹60/kg. Mini earns the same amount by selling sardines at ₹40/kg. How many kg sardines did Mini sell?
Gracy’s money = 6×60 = ₹360. Mini’s quantity = 360 ÷ 40 = 9 kg.
10) Basheer has ₹100. He spends one-fourth on squid (₹50/kg) and three-fourths on prawns (₹150/kg). How many kg of each?
Squid: ₹25 → 25/50 = 0.5 kg. Prawns: ₹75 → 75/150 = 0.5 kg.
11) The Meenkar Bank has 20 women. Each saves ₹25/month. How much is collected (a) per month (b) in 10 years?
(a) 20×25 = ₹500/month • (b) 500×12×10 = ₹60,000.
12) Gracy took a loan of ₹4000. She pays back ₹345 every month for 12 months. How much does she pay in total?
345×12 = ₹4140.
13) Jhansi & her sister took a loan of ₹21,000. They paid back ₹23,520 in one year. How much per month?
23,520 ÷ 12 = ₹1960 per month.
14) Factory setup cost: Bore well (₹3000×1), Bamboo racks (₹2000×20), Cement tanks (₹1000×4), Tray+knife (₹300×20), Buckets (₹75×20). Find total.
3000 + 40,000 + 4000 + 6000 + 1500 = ₹54,500.
15) Drying rule: dried fish is 1/3 of fresh fish. If they dry 6000 kg fresh fish, how much dried fish is obtained?
6000 × (1/3) = 2000 kg.
16) For 6 kg fresh fish: buy at ₹15/kg = ₹90. It dries to 2 kg, sold at ₹70/kg = ₹140. Profit for 6 kg? What profit for 6000 kg?
Profit per 6 kg = 140 − 90 = ₹50.
6000 kg = 1000 times 6 kg → Profit = 1000 × 50 = ₹50,000.
6000 kg = 1000 times 6 kg → Profit = 1000 × 50 = ₹50,000.
17) Monthly costs: Salt 1500 kg at ₹2/kg and Packing+Bus ₹3000. What is total monthly cost?
Salt = 1500×2 = ₹3000; Total = 3000 + 3000 = ₹6000.
18) Monthly revenue from selling 2000 kg dried fish at ₹70/kg. If fresh fish cost is ₹15/kg for 6000 kg and monthly other costs are ₹6000, what is the monthly net earning?
Revenue = 2000×70 = ₹140,000.
Fresh fish cost = 6000×15 = ₹90,000.
Gross profit = 140,000 − 90,000 = ₹50,000.
Net earning = 50,000 − 6,000 = ₹44,000.
Fresh fish cost = 6000×15 = ₹90,000.
Gross profit = 140,000 − 90,000 = ₹50,000.
Net earning = 50,000 − 6,000 = ₹44,000.
19) Out of ~2 lakh boats in the country, half are without motors. How many have motors? If one-fourth of motor boats are machine boats, how many machine boats (in thousands)?
With motors = 2,00,000 ÷ 2 = 1,00,000 (1 lakh).
Machine boats = (1,00,000) × (1/4) = 25,000 = 25 thousand.
Machine boats = (1,00,000) × (1/4) = 25,000 = 25 thousand.
20) A child weighs 30 kg. (a) What do 12 such children weigh together? (b) How much more does a 16,000 kg whale shark weigh than these 12 children?
(a) 30×12 = 360 kg.
(b) 16,000 − 360 = 15,640 kg more.
(b) 16,000 − 360 = 15,640 kg more.