#### Delhi Police Exam Numerical Ability Study Material

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b) 56

c) 55

d) 57

now,when teacher is included

total member = 34+1=35

Average Weight =42+0.400=42.4kg

similarly their total weight = 42.4x35=1484kg

therefore weight of teacher =(total weight including teacher -

total weight excluding teacher)

= 1484-1428 = 56 kg

Themean of the highest and the lowest sale (in rs crore )is

b) 4922.5

c) 4827

d) 4365

Lowest sale / 2

= 8730 + 924 / 2

= 4827 core

b) 53.5

c) 53

d) 52.5

52*36+18/36

104+1/2=105/2=52.5

b) 25.5°C

c) 25.6°C

d) 25°C

Total higher temperature of four days = 4 x 25 = 100oC

Average temperature of four days = 25.5oC

Total temperature of these four days = 4 x 25.5 = 102oC

Average temperature of a week = 7 x 25.2 = 176.4oC

Hence, temperature of fourth day = (100 + 102) - 176.4 = 25.6oC

b) 6

c) 41 / 6

d) 12 /4

b) 3.03

c) 3.3

d) 0.033

b) 4

c) 5.5

d) 4.5

b) 16

c) 26

d) 30

b) 2xy / (x+y)

c) (x2 + y2) /(x+y)

d) Xy/(x+y)

b) 75.8

c) 75.9

d) 75.6