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61 / 127
A juice container was 4/5 full. Ravinder poured 4 glasses from it and then poured two glasses back. The container is 3/4 full now. How many glasses can be filled if the entire container of juice is emptied?
A32
B36
C44
D40
Answer: Option D
Explanation:first it was (4/5) 80% full then after filling 2 glass it is (3/4) 75% full
Thus every 5% means 2 glass
Therefore 100% can fill (100/5)*2 = 40 glasses
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62 / 127
A constructor estimates that 3 people can paint Mr khans house in 4 days. If he uses 4 people instead of 3,how long will they take to complete the job?
A4
B2
C3
D5
Answer: Option C
Explanation:Formula M1*D1 = M2*D2
3*4 = 4*x
=> x = 3 days
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63 / 127
simple interest on an amount at 4% per annum for 13 months is more than the simple interest on the same sum for 8 months at 6% per annum by Rs. 40. what is the principle amount
A3600
B12000
C4800
D24000
Answer: Option B
Explanation:Lets assume principle ammount = Rs. x
[(P*4*13/100*12) - (p*6*8/100*12)] = 40
=> p=12000
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64 / 127
A tv manufacturer has decided to increase the sale to beat the economic slow down it decides to reduce the price of tv sets of 25% as a result of which the sales increased by 20 % what is the effect on total revenue of company
ADecrease by 20%
BIncrease by 20%
CIncrease by 10%
DDecrease by 10%
Answer: Option D
Explanation:Lets assume cost price of T.V = Rs. 100
so,marked price of T.V = Rs. 75
=> Final price = 120% of 75 = Rs. 90
Hence, Decrease in price = (100-90) = 10
Decrease by 10%.
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65 / 127
a) A boat travels 300m up stream in 15 minutes
b)Its speed down stream is 8/5 times its speed upstream
Which of the options provide the correct realationship between speed of current and speed of
ASpeed of current=12/10 times of speed of boat
BSpeed of current=3/13 times of speed of boat
CSpeed of current=11/10 times of speed of boat
DSpeed of current=9/13 times of speed of boat
Answer: Option B
Explanation:In 15 mins boat travels 300 mtr
So, in 60 mins=(300*4)=1200mtr
So, (u-v)=1200
Thus we get (u+v)=1920
Sloving this two equation we get u=1560 and v=360
Now (v:u)=360:1560=3:13
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66 / 127
If an integer k is divisible by 2,5 and 13, what is the next largest number that is divisible by all the three given numbers ?
Ak+130
Bk+13
C2k+13
D2k+65
E2k
Answer: Option A
Explanation:k+ LCM of 2,5,13
=> (k + 130)
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67 / 127
A salesman has the liberity to sell a hair dryer in his store at a price between Rs. 300 and Rs. 700. Profit earned by selling the hair dryer for Rs. 650 is twice the loss incurred when it is sold for Rs. 350. What is the cost price of the hair dryer ?
ARs. 550
BRs. 450
CRs. 350
DRs. 150
Answer: Option B
Explanation:Lets assume loss = Rs. X
So Loss x = C.P - S.P
=> X=C.P-350 -----------(1)
2X=650-C.P ------------- (2)
By solving the above eq. (1) & (2)
=> C.P = Rs. 450
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68 / 127
A train runs at a speed of 42 m/s and takes 35 seconds to pass a tunnel. After travelling some distance it takes 15 seconds to pass a pole. What is the length of the tunnel?
A162m
B630m
C840m
D240m
Answer: Option C
Explanation:Length of tunnel+length of train = 42*35 m
Length of train = 42*15 m
Length of tunnel = 42*35 m - 42 *15 m = 42 *(35-15)m = 840 m
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69 / 127
What is the least amount that a person can have, such that when he distributes it into groups of Rs.16 or Rs. 18 or Rs. 20 or Rs. 25, he is always left with Rs. 4?
ARs. 1796
BRs. 1804
CRs. 2596
DRs. 3604
Answer: Option D
Explanation:Find the lcm of 16 18 20 and 25 i.e 3600.
so the amount is (3600 + 4) = Rs. 3604
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70 / 127
what is the least number by which 16,800 must be divided to get a number perfect square
A21
B42
C24
D40
Answer: Option B
Explanation:16,800/42=400
400=(20)^2
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