Ibps So Agriculture Officer Scale I Exam Template With Answers Page 41
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45IBPS SO Agriculture Officer Scale I
2x = 6
x = 3
So, age of younger child = 3 years
102.
Option A
Originally, let the number of seats for Mathematics, Physics and Biology be 5x, 7x and 8x
respectively.
Number of increased seats are (140% of 5x), (150% of 7x) and (175% of 8x)
i.e. [
× 5x] , [
× 7x] and [
× 8x] i.e. 7x,
and 14x.
So, required ratio = 7x :
: 14x = 14x : 21x : 28x = 2 : 3 : 4
Let the third proportional to ( ⎯ ) and (x ⎯ y) be z. Then,
103.
Option D
( ⎯ ) : (x ⎯ y) : : (x ⎯ y) : z
( ⎯ ) × z = ( ⎯ )
( ⎯ )
( ⎯ )
(
⎯ )
(
)
z =
=
104.
Option D
= 0.466,
= 0.652,
= 0.68 and
= 0.724
Clearly, 0.724 is greatest and therefore, 21 : 29 is greatest.
105.
Option A
×
×
×
×
×
×
The ratio of milk in 3 vessels
=
×
:
×
:
×
=
:
:
Remember, The value of 25 litre does not matter, the basic thing is that the amount of
= [(3 × 140) ⎯ 241] = 179 litre
mixture in all the three quantities is same.
So, the total quantity of milk in mixture = 105 + 56 + 80 = 241
Therefore, ratio of water to milk in the new mixture = 179 : 241
106.
Option D
Amount of alcohol in first vessel = 0.25 × 2 = 0.5 litre
Amount of alcohol in second vessel = 0.4 × 6 = 2.4 litre
.
Total amount of alcohol out of 10 litres of mixture is 0.5 + 2.4 = 2.9 litre
Hence, the concentration of the mixture is 29% [=
× 100]
107.
Option E
A : B : C = (25 lakhs × 1) + (35 lakhs × 2) : (35 lakhs × 2 + 25 lakhs × 1) : (30 lakhs × 3)
= 95 lakhs : 95 lakhs : 90 lakhs = 19 : 19 : 18
108.
Option D
Suppose B invested Rs. x for y months. Then, A invested Rs.3x for 2y months.
So, A : B = (3x × 2y) : (x × y) = 6xy : xy = 6 : 1
So, B’s profit : total profit = 1 : 7
Let the total profit be Rs. x. Then,
=
or x = 28000
Page 41
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