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A, B and C invested in a business in the ratio 6: 8: 9. If B invested for a period whose numerical value is 112.5% of B’s investment but A and C invested for one year. If profit of B at the end of the year is 16750 then what is the share of profit of C?

Correct

Incorrect

Question 7 of 10

7. Question

1 points

Category: Quantitative Aptitude

Sum of the length of two trains A and B is 660. The ratio of the speeds of A and B is 5: 8. Ratio between time to cross an electric pole by A and B is 4: 3. Find the difference in the length of two trains.

Correct

Explanation:
Sum of length of train = 660
l1 + l2 = 660
SA: SB = 5: 8
Let speed be 5x and 8x and time taken to cross pole be 4y, 3y
So,
5x × 4y + 8x ×3y = 660
44xy = 660
xy = 15
l1 – l2 = 24xy – 20xy
= 4xy
⇒ 60

Incorrect

Explanation:
Sum of length of train = 660
l1 + l2 = 660
SA: SB = 5: 8
Let speed be 5x and 8x and time taken to cross pole be 4y, 3y
So,
5x × 4y + 8x ×3y = 660
44xy = 660
xy = 15
l1 – l2 = 24xy – 20xy
= 4xy
⇒ 60

Question 8 of 10

8. Question

1 points

Category: Quantitative Aptitude

A mixture of milk and water in a jar contains 28 L milk and 8 L water. X L milk and X L water are mixed to form a mixture. If 40% of the new mixture is 20 L, then find the value of X.

Correct

Explanation:
40% of new mixture = 20L
100% of new mixture=20/40×100
= 50 L
28 + x + 8 + x = 50
2x = 50 – 36
x = 7L

Incorrect

Explanation:
40% of new mixture = 20L
100% of new mixture=20/40×100
= 50 L
28 + x + 8 + x = 50
2x = 50 – 36
x = 7L

Question 9 of 10

9. Question

1 points

Category: Quantitative Aptitude

Marked price of A is Rs. 1600 more than its cost price. When discount on A is 500 a profit of 25% is obtained. At what price should A be sold to obtain a 30% profit?

Correct

Incorrect

Question 10 of 10

10. Question

1 points

Category: Quantitative Aptitude

The ten’s digit of a three digit number is 3. If the digits of x are interchanged and the number thus formed is 396 more than the previous one. The sum of unit digit and hundred digit is 14, then what is the number?

Correct

Explanation:
Let digit be xyz
So,
According to question
y = (100z+30+x) – (100x+30+z) = 396
99z-99x=396
Z – x = 4 …. (i)
And it is given that
z + x = 14 … (ii)
Solving (i) & (ii)
z = 9
x = 5
So, number is = 539

Incorrect

Explanation:
Let digit be xyz
So,
According to question
y = (100z+30+x) – (100x+30+z) = 396
99z-99x=396
Z – x = 4 …. (i)
And it is given that
z + x = 14 … (ii)
Solving (i) & (ii)
z = 9
x = 5
So, number is = 539

_______________________

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