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Top 10 Question Discussion (Mathematics) Sep. 2nd Week 2020


Top 10 Question Discussion (Mathematics) Sep. 2nd Week 2020
  1. 6 m. 72 cm. A long iron sheet and 9 m. 60 cm. What is the length of the largest piece of the same size cut from a long copper plate? What is the number of pieces of each type of leaf in this size?
    1. 84 cm, 8 , 12
    2. 112 cm, 6, 13
    3. 96 cm, 7, 10 
    4. 76 cm, 7, 11
  2. The ratio of the price of two houses is 4: 3 and the price of the second is Rs. 42,000. If the price of the first house was Rs.
    1. 3:2
    2. 2:3
    3. 3:4
    4. 4:3
  3. 78% of the total monthly expenses of a family are other expenses. The rest is for rent. If the rent is 1309 rupees, what is the monthly expenditure of that family?
    1. 5850 
    2. 5750 
    3. 5950
    4. 5650
  4. The average income of A and B is 505 rupees, the average income of B and C is 535 rupees and the average income of A and C is 520 rupees. What is the actual income of each of A, B and C?
    1. A 440 h., B 570 h., C 550 h.
    2. A 470 hrs., B 540 hrs., C 550 hrs.
    3. A 450 h., B 540 h., C 570 h.
    4. A 490 hrs., B 520 hrs., C 550 hrs.
  5. A cistern is filled with water in 10 hours, but it took more than 2 hours to fill due to a hole in the bottom. How long will the water tank be waterless through that hole?
    1. In 66 hours
    2. In 50 hours
    3. In 60 hours
    4. In 70 hours
  6. One radio manufacturer charged 286 per cent of the cost of producing a radio. But gave a 10% discount to the buyer to sell. What is his percentage gain?
    1. 15% 
    2. 13% 
    3. 17% 
    4. 19% 
  7. Mr. Rahman borrowed Rs. 24,000 per annum at a simple interest rate of 12% to build the house and rented it out exactly one year after the house was built. If his monthly income from house rent is Rs.
    1. 5 years
    2. 6 years
    3. 8 years
    4. 9 years
  8. When a train travels at a speed of 40 km per hour, it reaches the specified station on time, but there is a delay of 15 minutes to reach the speed of 32 km per hour. What is the distance to the destination?
    1. 32 km
    2. 35 km
    3. 40 km
    4. 42 km
  9. What is the total compounding of Rs.5000 in 3 years at the rate of 8% in a co-operative society?
    1. 6289.65 
    2. 6298.65 
    3. 6298.56
    4. 6829.56
  10. The cost of a machine in a factory is reduced by 10% annually. If the current price of the machine is 100000 rupees, what will be the price of that machine after 3 years?
    1. 70000 
    2. 72000
    3. 72900
    4. 70900

 

Answer Sheet
1) C 2) A 3) C 4) D 5) C
6) C 7) D 8) C 9) C 10) C

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Rajat Baidya is Founder & CEO RB Web Solution. He is a Full Stack Web Developer.

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