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# Wipro NLTH Placement Questions & Answers :: Wipro NLTH

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## Total Qs: 154+

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A boat moves down stream at the rate of 1 km in 6 minutes and upstream at the rate of 1 km in 10 minutes. The speed of current is?

A3 kmph

B2 kmph

C6 kmph

D5 kmph

ENone of above

| | Important Formulas | Topic: | Asked In |

Explanation:

If speed(in kmph) of the boat=b and current=c, then
In downstream time taken(in hrs.)=1/(b+c)=6/60=1/10 or b+c=10 ---(i) &
In upstream time taken(in hrs.)=1/(b-c)=10/60=1/6 or b-c=6 ---(ii)
From (i) & (ii), b=8, c=2

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Three men invested sum and their ratio is 5:7:6. Profit is 5400. Then what is B's share?

A2100

B3100

C2200

D3200

| | Important Formulas | Topic: | Asked In |

Explanation:

B's share =7/18*5400=2100

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The population of a town is 18000. It increases by 10% during first year and by 20% during the second year. The population after 2 years will be :

A19800

B21600

C23760

DNone

| | Important Formulas | Topic: | Asked In |

Explanation:

10% of 18000 is 1800
After first year the population is 18000+1800
The total population becomes 19800
In second year the population becomes 20% of first year
So 20% of 19800 is 3960
19800+ 3960 gives 23760

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Population of a colony of ants is increasing by 20% per day. If the population on Monday was 3000, on which day of that week the population would be 5184 ?

AMonday

BTuesday

CWeddnesday

DThursday

| | Important Formulas | Topic: | Asked In |

Explanation:

On monday the population is 3000, and 20% of 3000 is 600
On tuesday the population is 3600(3000+600) and 20% of 3600 is 720
On wednesday the population is 4320(3600+720) and 20% of 4320 is 864
On thursday the population is 5184(4320+864).

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The largest measuring cylinder that can accurately fill 3 tanks of capacity 98,182 and 266 litres each, is of capacity:

A2litres

B7litres

C14litres

D98litres

ENone of above

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Explanation:

98,182,266 all are divisible by 14
So ans 14 litres (you take HCF also)

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What is John's age?
(I) In 15 years John will be twice as old as Dias would be
(II) Dias was born 5 years ago

AIf statement (I) alone is sufficient but statement (II) alone is not sufficient.

BIf statement (II) alone is sufficient but statement (I) alone is not sufficient.

CIf both statements together are sufficient but neither of statements alone is sufficient.

DIf both together are not sufficient.

| | Important Formulas | Topic: | Asked In |

Explanation:

option c is correct because according to given information we
can't find john's age with out the age of dias.

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The percentage discount offered for"Buy 6 get 1 free is"?

A15%

B12.50%

C23.43%

D14.29%

ENone of above

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Explanation:

cost of 6 items=rs6
cost of 7 items=rs7
we get 7 items for 6rs
so discount =7-6/6*100 apox 14.29 %

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Initially a number was 150. It was reduced by 20%. How much it is to be reduced to become 108?

A20%

B30%

C10%

D15%

| | Important Formulas | Topic: | Asked In |

Explanation:

Let x=150
Reduced by 20%
20% of 150=30
150-30=120
To make 120 as 108 subtract 12 i.e.10% of 120
120-10% of 120=108

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A sum of Rs. 427 is to be divided among A, B and C in such a way that 3 times A's share, 4 times B's share and 7 times C's share are all equal. The share of C is?

A123

B56

C84

D89

ENone of above

| | Important Formulas | Topic: | Asked In |

Explanation:

A+B+C=427
3A=4B=7C=k(say)
A=k/3, B=k/4, C=k/7
k/3+k/4+k/7= 427
28k + 21k + 12k = 427*84
61k = 427*84
k=7*84
C=k/7
C=84

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The average age of 40 students of a class is 15 years. When 10 new students are admitted, the average is increased by 0.2 years. The average age of new students is :

A15.2 yrs

B16 yrs

C16.2 yrs

D16.4 yrs

| | Important Formulas | Topic: | Asked In |

Explanation:

Total Student -year for 40 students =40*15=600.
when 10 new students were admitted the avg. increased by 0 .2 or becomes 15.2 years.
Therefor new Student-year for 50 students=15.2*50=760.
Student-year for 40 students 600 & for 50 students its 760, difference = 160.
hence we can say that 160 student-years were added, which is of 10 student.
Hence the average for 10 new students = 160/10 or 16 years