সমন্বিত ৭ ব্যাংক অফিসার ক্যাশ

51. The average of five consecutive integers is X. If the next two numbers are added, how shall the average vary?

ক. It shall increase by 1
খ. It shall increase by 1.4
গ. It shall increase by 2
ঘ. It shall remain the same

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52. A clock seen through a mirror, shows quarter past three. What is the correct time shown by the clock?

ক. 3:15
খ. 7:15
গ. 8:45
ঘ. 9:45

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53. A school has only the classes having 20, 30 and 40 students respectively. The percentages of students passed are 30%, 50% and 60% respectively. The percentage of passed students in the entire school is-

ক. ৩৫
খ. 40
গ. 45
ঘ. 50

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54. If a 240-metre-long metro rail passes a pole in 24 seconds, how long will it take to pass a 650-metre-long platform?

ক. 60 seconds
খ. 75 seconds
গ. 89 seconds
ঘ. 130 seconds

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55. The daily rate for a hotel room that sleeps 4 people is Tk. 390 for one person and X taka for each additional person. If 3 people take the room for one day and each pays Tk 210 for the room, then what is the value of X?

ক. 60
খ. ১২০
গ. 80
ঘ. ২৪০

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56. The value of a machine is Tk.6250. Its value decreases by 10% during the first year, 20% during the second year and 30% during the third year. What will be the value of the machine after 3 years?

ক. ২৬৫০
খ. ৩০৫০
গ. 3150
ঘ. ৩৭৫০

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57. The average temperature for the first 4-days of a week is 40,2º C and that of the last 4-days is 41.3°C. If the average temperature for the whole week is 40.6° C, then temperature on the fourth day is -

ক. 38.5 ° C
খ. 41.8° C
গ. 41.3°C
ঘ. 40.8° C

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58. If the radius of a circle is increased by 100%, by what % is the area of the circle increased?

ক. 100%
খ. 200%
গ. 300%
ঘ. 400%

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59. What would be the measure of the perimeter of a square whose area is equal to 256 square cm?

ক. 16 cm
খ. 36 cm
গ. 64 cm
ঘ. 128 cm

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