Quantitative Aptitude Prep Tips for MBA

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New answer posted

a month ago

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V
Vishal Baghel

Contributor-Level 10

(b):A = price of one apple

B = price of one tomato

Given that:

3A + 4B = 5A + 3B

B = 2A

So, one tomato can be purchased in the same amount as that used to purchase two apples.

Therefore instead of 18 tomatoes one will be able to purchase 36 apples.

New answer posted

a month ago

0 Follower 1 View

V
Vishal Baghel

Contributor-Level 10

(a) :Since the winner gets 60 % of the total votes, the loser must have got 40% of the total votes. Let the total number of votes be T. Then

0.6T – 0.4T = 150

0.2T = 150 T = 750

We need to find the votes polled by the losing party, that is

40 % of 750 = 0.4 * 750 = 300 votes

New answer posted

a month ago

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R
Raj Pandey

Contributor-Level 9

Every number between 1000 and 2000, which is divisible by five and which can be formed by the given digits, must contains 5 in unit's place and 1 in thousand's place. Thus we are left with four digits out of which we are to place two between 1 and 5, which can be done in 4P2 = 12 ways. Hence, 12 numbers can be formed.

New answer posted

a month ago

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V
Vishal Baghel

Contributor-Level 10

(c):Discount = 3%

Price = 650.

S.P = .97 * 650 = 630.5

New answer posted

a month ago

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R
Raj Pandey

Contributor-Level 9

Let L be the vertical distance between the centers of two adjacent balls.

L = [ ( 2 r ) 2 r 2 ] = r 3

Also, if the box can hold n sphere then (n – 1) L + 2r

≤ 9r [ the last ball height = 2r]

( n 1 ) 3 r 7 r

n 7 3 + 1

n ≤ 5.04

Since, n is a natural number.

n = 5

So, the box can hold maximum of 5 spheres.

New answer posted

a month ago

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V
Vishal Baghel

Contributor-Level 10

(b):Total time required to empty it =

1 (1313.5)=21hours.

New question posted

a month ago

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New answer posted

a month ago

0 Follower 1 View

R
Raj Pandey

Contributor-Level 9

9B + 3 + 5G + 4 = 200  9B + 5G = 193

The positive integer solutions are (B, G) = (2, 35) (7, 25) (12, 17) (17, 8)

Only one of the (B, G) gives G > B and 9B + 3 > 100, i.e. (B, G) = (12, 17)

 

17 * 5 = 85

New answer posted

a month ago

0 Follower 1 View

V
Vishal Baghel

Contributor-Level 10

(a):Let, s be the speed of stream.

So, 8 + s = 2 (8 – s)

s = 8/3 mph

New answer posted

a month ago

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V
Vishal Baghel

Contributor-Level 10

(a):Let G be (X, Y) then X = { 3 + 5 + ( 3 ) } 3 = 5 3

Y = ( 7 + 5 + 2 ) 3 = 1 4 3

Gis  (53, 143)

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