Wipro WILP Quantitative Aptitude Questions

Explanation:

Here least number is needed that means we need the Least Common Multiple i.e. LCM
We must now first find LCM of 20, 36 and 48
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4 20 36 48
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3 5 9 12
5 3 4
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∴ LCM = 4 x 3 x 5 x 3 x 4 = 720

But this is not the answer because there are remainders as per the given condition.
If we observe closely, the difference between the given numbers and remainders is same
20 - 13 = 7; 48 - 1 = 7; 36 - 29 = 7
Difference is same = 7
So simply subtract this difference from LCM.
Number = 720 - 7 = 713

We are given that, Amir, Bhumi Pendekar & Chirag Sarasawt together can finish the work in 4 days

We can write, (Amir+ Bhumi Pendekar + Chirag Sarasawt ) 's 1 day work= \frac{1}{4}

Similarly, (Amir+ Bhumi Pendekar) 's 1 day work = 1/6 days & ( Bhumi Pendekar + Chirag Sarasawt)'s 1 day work = \frac{1}{10}

Since the work is divided in combination and we are asked to find out the combined work of (Amir + Chirag Saraswat), so we can find out,

(Amir + Chirag Saraswat)'s 1 day work = [2 (Amir+ Bhumi Pendekar + Chirag Saraswat )'s 1 day work] – [(A+ B) 's 1 day work + (B+C)'s 1 day work]

\left [ 2\times \frac{1}{4} \right ]- \left [ \left ( \frac{1}{6} \right ) +\left ( \frac{1}{10} \right )\right ]

\frac{1}{2}-\frac{16}{60}= \frac{1}{2}- \frac{4}{15}= \frac{7}{30}

Hence, Amir + Chirag Saraswat together can complete the work in 30 /7 days =4\frac{2}{7} days

Let the length of each train be x meter

Then distance covered is 2x meter

Relative Speed=

(46-36)km/hr

10\times \frac{5}{18} m/s

\frac{25}{9} m/s

\therefore \frac{2x}{36}= \frac{25}{9}

=> 2x= 100

x= 50m

Let investments in Money Heist, Dark, Stranger Things  be
Simple interest on x at 10% for 1 year
+ Simple interest on y at 12% for 1 year
+ Simple interest on z at 15% for 1 year
=3200

\frac{x\times 10\times 1}{100}+\frac{y\times 12\times 1}{100}+\frac{z\times 15\times 1}{100}= 3200

10x+12y+15z=320000⋯(1)

investment in movie Stranger Things = 240% of investment in movie Dark

z= \frac{240y}{100}= \frac{12y}{5}........2

investment in movie Stranger Things= 150% of investment in movie Money Heist

z= \frac{150x}{100}= \frac{3x}{2}........2

x= \frac{2z}{3}= \frac{2}{3}\times \frac{12y}{5}= \frac{8y}{5}....3

Using (2) and (3) in (1)

10x+12y+15z=320000

10\left ( \frac{8y}{5} \right )+12y+15\left ( \frac{12y}{5} \right )= 320000

⇒16y+12y+36y=320000⇒64y=320000⇒y=5000

That is, the amount invested in movie Dark =₹5000

According to the question,

The probability that a student chosen at random from class is a psychology major = P(E) = 0.18

As we know,

P(E)+P(E′)=1

where P(E) = Probability of an event to occur.

And P(E') = Probability of an event not to occur.

Hence, Probability that a student chosen at random from class is not a psychology major = P(E') = 1 - P(E) = 1 - 0.18 = 0.82

This is the required answer.

Explanation-

35.7 -\left ( 3+\frac{1}{\frac{10}{3}} \right )-\left ( 2+\frac{1}{\frac{5}{2}} \right )

35.7 - \left ( 3+\frac{10}{3} \right )- \left ( 2+\frac{2}{5} \right )= 35.7- \frac{33}{10}-\frac{12}{5}

35.7-\left ( \frac{33}{10} +\frac{12}{5}\right )= 35.7 - \frac{57}{10}= 35.7- 5.7= 30

Explanation-

Explanation:

Let the present age of the Ritvik be 'P' and Asha be 'Q',
Given, P + Q = 64 or Q = (64 - P)
Now the Ritvik says "I am five times as old as you were when I was as old as you are",
So, P = 5[B - (P - Q)]
We get 6P = 10Q,
Substitute value for Q,
6P = 10(64 - P),
Therefore P = 40, Q = 24.

Solution:
Option(D) is correct

Let the original average expenditure be Rs.x

then,

42(x−1)−35x=42

⇒7x=84

⇒x=12

Therefore original expenditure

=Rs.(35×12)

=Rs. 420

Explanation-

Loss in first year = 15% 0f 11000
= 1650
Cost of mobile in second year 115% of 11000
= 11000 + 1650
= 12650
Loss in second year = 20% of 12650
= 2530
Total loss = 1650 +2530
= 4180
Average loss = 4180/2 = 2090

Explanation:

Originally, let the number of seats for MBA, BSC Botany, and Engineering be 5x, 7x and 8x respectively.

The number of increased seats are (140% of 5x), (150% of 7x) and (175% of 8x).

\left ( \frac{140}{100} \times 5x\right ), \left ( \frac{150}{100}\times 7x \right )and \left ( \frac{175}{100}\times 8x \right )

7x, \frac{21x}{2} and 14x

Therefore, The required ratio = 7x: \frac{21x}{2}:14x

14x : 21x : 28x

2 : 3 : 4