Mathematics Quiz For RRB NTPC : 16th December

Directions (1 – 5) : Study the following graph carefully to answer the questions give below it.

Production of paper (in lacs tons) by 3 different companies A, B and C over the years

 

Q1. What is the difference between the production of company C in 1991 and the production of company A in 1996 ?
(a) 50000 tons
(b) 50000000 tons
(c) 5000000 tons
(d) 500000 tons

Q2. What is the percentage increase in production of company A from 1992 to 1993 ?
(a) 37.5
(b) 38.25
(c) 35
(d) 36

Q3. For which of the following years the percentage of rise / fall in production from the previous year the maximum for company B ?
(a) 1992
(b) 1993
(c) 1996
(d) 1995

Q4. The total production of company C in 1993 and 1994 is what percentage of the total production of company A in 1991 and 1992 ?
(a) 95
(b) 90
(c) 110
(d) None of these

Q5. What is the difference between the average production per year of the company with highest average production and that of the company with lowest average production in lacs tons ?
(a) 3.17
(b) 4.33
(c) 4.17
(d) 3.33

Q6. A right cylindrical vessel is full with water. How many right cones having the same diameter and height as that of the right cylinder will be needed to store that water ?
(a) 4
(b) 2
(c) 3
(d) 5

Q7. A spherical lead ball of radius 10cm is melted and small lead balls of radius 5mm are made. The total number of possible small lead balls is
(a) 8000
(b) 400
(c) 800
(d) 125

Q8. How many spherical bullets can be made out a solid cube of lead whose edge measure 44 cm, each bullet being 4 cm in diameter ?
(a) 2541
(b) 2451
(c) 4251
(d) 4215

Q9. Roza can eat 32 rasgullas in one hour. Her sister Leela takes 3 hours to eat same number of rasgullas. How much time (min.) will they take to eat 32 rasgullas ?
(a)    45
(b)   240
(c)
(d)   90

Q10. A can plough 2/5 part of a field in 6 days and B can plough 1/3 part of the same field in 10 days. In what time will they plough 4/5 part of the field working together ?
(a) 4 days
(b) 5 days
(c) 8 days
(d) 10 days

Soltuions:

 

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