aptitude average mcq pdf Model Questions & Answers, Practice Test for ibps rrb so officer sclae 2 3 single exam 2024

Answer: (b)

Quantity used in 1st yr = 8000/20 = 400 l,

in 2nd yr = 8000/22 = 363.6,

in 3rd yr = 340.4 l

Total used in 3 yrs = 1104 litres,

total money spent in 3 yrs = 3 × 8000 = 24000

So average rate of 3 yrs = 24000/1104 = 21.7

Answer: (e)

A + B + C + D = 58 × 4

B + C + D + E = 60 × 4

Subtract both, E - A = 8

So 8x - 7x = 8, x = 8

So temperature of A(1st day)

= 7x = 7 × 8 = 56

Answer: (a)

Total runs made till first 40 overs = 40 × 4.8 = 192 runs.

Runs to be made in last 10 overs = 241 - 192 = 49 runs.

Required run rate = $49/10$ = 4.9 runs/over.

Answer: (e)

Seven years ago, let Arun's and Deepak's age be 5x and 7x years respectively.

∴ Arun's present age

= (5x + 7) Years

Deepak's present age

= (7x + 7) Years

According the question,

7x + 7 - 5x - 7 = 14

= 2x = 14

x = $14/2$ = 7

∴ Deepak's present age = 7x + 7

= 7 × 7 + 7 = 56 years