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191 / 362
A invested Rs. 76,000 in a business. After few months, B joined him Rs. 57,000. At the end of the year, the total profit was divided between them in ratio 2 : 1. After how many months did B join?
A10
B8
C9
DNone of these
Answer: Option B
Explanation:Lets assume B join business after x months.
So, 76000*12/57000*x=2/1
By solving above
x = 8 months.
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192 / 362
Find the largest 4-digit number, which gives the remainder 7 and 13 when divided by 11 and 17?
A9900
B9907
C9807
DNone of these
Answer: Option B
Explanation:LCM of 11 and 17 = 187.
When divided by 11 remainder 7,so difference 4.
When devided by 17 remainder 13,so difference 4.
Largest no exactly devide by 11 & 17=9911
The no's = 9911-4 = 9907.
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193 / 362
A man sells two houses at the rate of Rs. 1.995 lakhs each. On one he gains 5% and on the other, he loses 5%. His gain or loss percent in the whole transaction is :
A0.25% loss
B0.25% gain
C2.5% loss
D25% loss
Answer: Option A
Explanation:Note: If a person sells two items at the same price; one at a gain of x% and another at a loss of x%, then the seller always incurs a loss expressed as
Loss%=[(Common Loss and Gain%)/10]^2 = (x/10)^2
Loss % = (5/10)^2= 0.5^2= 0.25
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194 / 362
A cricket team won 40% of the total number of matches it played during a year. If it lost 50% of the matches played and 20 matches were drawn, the total number of matches played by the team during the year was :
A200
B100
C50
D40
Answer: Option A
Explanation:Lets assume team played total matches = x.
40% of x+50% of x+20=x
90% of (x+20) = x
20 = x-9x/10
20 = x/10
x = 200
so, total matches played by team = 200
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195 / 362
Grass in lawn grows equally thick and in a uniform rate. It takes 24 days for 70 cows and 60 for 30 cows . How many cows can eat away the same in 96 days?
A18
B20
C21
D19
Answer: Option B
Explanation:Let g = grass initially, r = rate at which grass grow/day and c= cow eat grass/day.
=> g + 24r = 70 * 24c = 1680c -----------(i)
and,
=> g + 60r = 60 * 30c = 1800c
=> g = 1800c - 60r -----------(ii)
By solving these equations, we have c = (3/10)r -------------(iii)
=> g + 96r = 96nc.
=> 96nc = 1800c - 60r + 96r = 1800c + 36r=1800c+120c=1920c
=>n=20.
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196 / 362
Toffees are bought at the rate of 3 for a rupee. To gain 50 %, they must be sold at :
A2 for a rupee
B1 for a rupee
C4 for a rupee
D5 for a rupee
Answer: Option A
Explanation:Here is no explanation for this answer
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197 / 362
The average of first 50 natural numbers is :
A12.25
B21.25
C25
D25.5
Answer: Option D
Explanation:The sum of n natural numbers = (n(n+1))/2
Hence (50(51))/2 = 1275
So, average = 1275/50 = 25.5
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198 / 362
In two alloys, copper and tin are related in the ratios of 4:1 and 1:3. 10kg of Ist alloy, 16 kg of 2nd alloy and some pure copper melted together. An alloy obtained in which the ratio of copper and tin was 3:2. Find the weight of the new alloy.
A34 kg.
B35 kg.
C36 kg.
D30 kg.
Answer: Option B
Explanation:Suppose x kg of pure copper is melted with 10kg of Ist alloy and 16 kg of 2nd alloy , then
Pure cooper in new alloy = 10*4/5 + 16*1/4 +x = 12+x kg
Pure tin in new alloy = 10*1/5+ 16*3/4 = 14 kg
As per given condition
=>(12+x)/14 = 3/2
=> 24+2x= 42
=> x=9 kg.
Total weight of new alloy = (10+16+9) = 35 kg.
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199 / 362
Which of the following are phases of 2-phase locking protocol?
AIntent to request locks
BRelease the present locks and never asking for transmission
CBoth (1) and (2)
DNone of these
Answer: Option C
Explanation:There are 2 phases in 2 phase locking protocol:
1.growing phase:during which all locks are requested
2.shinking phase:during which all locks are released and issue no more lock requests
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200 / 362
A shift register can be used for
AParallel to serial conversion
BSerial to parallel conversion
CDigital delay line
DAll the above
Answer: Option D
Explanation:Here is no explanation for this answer
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