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1 / 9
A' and 'B' complete a work togather in 8 days.If 'A' alone can do it in 12 days.Then how many day 'B' will take to complete the work?
A25 days
B24 days
C20 days
DNone of these
Answer: Option B
Explanation:A & B one day work = 1/8
A alone one day work = 1/12
B alone one day work = (1/8 - 1/12) = ( 3/24 - 2/24)
=> B one day work = 1/24
so B can complete the work in 24 days.
A = 12, A+B = 8, B = ?
Take LCM of A & A+B = 24.
So, A=12*2 = 24, A+B = 8*3 = 24, B = 1*24 = 24.
Answer: B = 24days.
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2 / 9
If A alone can do a piece of work in 8 days and B alone can do the same work in 12 days. How many days A and B required to finish the same work if they work togather?
A24/5 days
B24 days
C5day days
D5/24 days
ENone of these
Answer: Option A
Explanation:A alone one day work = 1/8
B alone one day work = 1/12
Both A and B one day work = (1/8 + 1/12) = (3/24 + 2/24)
= 5/24
so A and B together finish the work in 24/5 day
or 4 4/5 days.
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3 / 9
When a number is divided by 13, the remainder is 11. When the same number is divided by 17, then remainder is 9. What is the number ?
A339
B349
C369
DData inadequate
Answer: Option B
Explanation:x = 13p + 11 and x = 17q + 9
ShortCut By :: Sairam349
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4 / 9
A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?
A120 metres
B180 metres
C324 metres
D150 metres
Answer: Option D
Explanation:Length of the train = (Speed x Time) =50/3 x 9 m = 150 m.
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5 / 9
A can do a work in 10 days and B can do the same work in 15 days. So how many days they will take to finish the same work ?
A5 days
B7 days
C9 days
D6 days
Answer: Option D
Explanation:First find the 1 day work of both (A & B)
A 1 day's work = 1/10
and
B 1 day's work = 1/15
So (A + B) 1 day's work = (1/10+1/15)
= (3/30+2/30) = 5/30 = 1/6
So Both (A & B) together can finish work in 6 days
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6 / 9
Look at this series: 36, 34, 30, 28, 24, ... What number should come next?
A20
B22
C23
D26
Answer: Option B
Explanation:Here is no explanation for this answer
ShortCut By :: AkhilFor the first two numbers there is a difference of 2 and next two nos have difference of 4 and 2 and 4 repeat the procedure
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7 / 9
A can finish a piece work in 18 days and B can do the same work in half the time taken by A. So if they working together, what part of the same work can finished in a day?
A1/7
B1/6
C6
D5/6
Answer: Option B
Explanation:First find the 1 day work of both (A & B)
A's 1 day's work = 1/18
and
B's 1 day's work = 1/9 (B can do work in half time)
(A + B)'s 1 day's work = (1/18+1/9)
= (1+2)/18 = 3/18 = 1/6
so A & B together can do 1/6 of work in 1 day.
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8 / 9
Object-oriented programmers primarily focus on
Aprocedures to be performed
Bstep-by-step statements needed to solve a problem
Cobjects and the tasks that must be performed with those objects
Dphysical orientation of objects
Answer: Option C
Explanation:Here is no explanation for this answer
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9 / 9
Which of the choices is true for the mentioned declaration?
const char *p;
and
char * const p;
Choose one of them:
AYou can't change the character in both
BIn first case, you can't change the character and second case you can’t change the pointer
CYou can't change the pointer in both
DIn first case you can't change the pointer and in second case you can't change the character
ENone of these
Answer: Option B
Explanation:Here is no explanation for this answer
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